Gypsum; anhydrite; limestone flux; limestone and other calcareous stone for lime or cement manufacture

1. Scope and Applicability

Supply of uncalcined gypsum, anhydrite, limestone flux and limestone/other calcareous stone of a kind used for lime or cement manufacture at one declared raw-mineral gate. Cover quarry or actual underground extraction and standalone preparation of supplied burden-bearing minerals, including raw or actually crushed, washed, dried or ground grades that retain the declared raw-mineral identity. Do not narrow this category to gypsum. Gypsum dihydrate and natural anhydrite are distinct mineral states; drying must not silently become plaster calcination. Limestone flux and calcareous chemical-manufacture feed use actual mineral/oxide/impurity and reactive-quality evidence rather than a universal pure-CaCO3 composition. Where an industrial by-product gypsum is actually supplied under this uncalcined category, confirm its identity/grade and generating-process allocation/cut-off, record actual receiving, dewatering/washing/drying and supplier burdens separately; natural-gypsum evidence cannot establish its purity or zero upstream burden. Include attributable development/closure, handling, controls and delivery only through the explicitly chosen gate. Exclude calcined plaster, lime, clinker/cement manufacture and finished gypsum articles. epa-gypsum-1993, epa-crushed-stone-2004, wco-hs25-2022, ifc-mining-2007

2. Product Category Identity

Field	Value
canonical_pcr_id	pcr.ores-and-minerals-electricity-gas-and-water.stone-sand-and-clay.gypsum-anhydrite-limestone-flux-limestone-and-other-calcareous-stone-of-a-kind-used-for-cb4995bb
classification_refs	CPC 3.0:15200
covered_products	Uncalcined gypsum and anhydrite; limestone flux; limestone and other calcareous lime/cement feed, with one actual phase, origin, grade and raw-mineral gate
excluded_products	Calcined gypsum/stucco/plaster; gypsum wallboard and formulated articles; quicklime/slaked lime; clinker/cement; dimension-stone articles or ordinary aggregate reference; spent contaminated mineral waste not qualified as this product
representative_product	Natural gypsum delivered at the declared plant gate
production_route	Mineral-deposit development and closure; Sulfate/carbonate mineral extraction; Raw-mineral preparation and conditioning; Water, residue and dust controls; Included mineral delivery; Accepted mineral supply
market_state	One raw/processed uncalcined mineral grade with actual moisture and chemical phase, at declared quarry/processing loading or explicitly included plant-receipt delivery gate

3. Reference Flow

Field	Value
What	Supply1 kg of qualified uncalcined gypsum, anhydrite or calcareous flux/feed in its declared state; no performance-equivalence claim across sulfate/carbonate minerals
How much	1 kg
How well	site/year; gypsum/anhydrite/carbonate phase and origin; quarry/underground or supplied/by-product route; actual processing and absence of calcination; sulfate/carbonate/oxide and impurity assays; free moisture versus crystal water; grading/purity/reactivity for declared use; quarry/plant-receipt gate and included transport; accepted net output and stocks; water basin/return; waste fate; supplier allocation/cut-off; lifetime development output; representative UUID only for China natural gypsum quarried and delivered to plant, other minerals/source states/gates require distinct identity
How long or cycle	One gate supply within a declared production period
reference_flow_link	final_product

Field	Value
Reference amount	1
Reference product flow	Natural gypsum a4be0b17-8763-439c-a818-30b9b4afeed3
Reference flow property	Mass 93a60a56-a3c8-11da-a746-0800200b9a66
Reference unit group	Units of mass 93a60a57-a4c8-11da-a746-0800200c9a66
Reference unit	kg
Required qualifiers	site/year; gypsum/anhydrite/carbonate phase and origin; quarry/underground or supplied/by-product route; actual processing and absence of calcination; sulfate/carbonate/oxide and impurity assays; free moisture versus crystal water; grading/purity/reactivity for declared use; quarry/plant-receipt gate and included transport; accepted net output and stocks; water basin/return; waste fate; supplier allocation/cut-off; lifetime development output; representative UUID only for China natural gypsum quarried and delivered to plant, other minerals/source states/gates require distinct identity

Declare all qualifiers in dataset metadata or reference-flow comments. The representative identity is usable only for its confirmed product state, geography and property; resolve a distinct flow for incompatible variants. It does not impose a default product composition.

4. Measurement and Unit Rules

rule_id	Applies to	Required property	Required unit	Rule
reference_basis	final_product	Mass	kg	D is the positive accepted net gate-output total in kg. Exclude packaging and cancelled internal transfers. cp_output records D; every card uses per 1 kg reference flow.
conversion	utility and material rows	Declared row property	kg; m3; MJ	Retain raw readings. Electricity: 1 kWh = 3.6 MJ. Mass/volume conversion requires measured density, temperature and applicable pressure; retain water content and active chemical fraction.
category_balance	production	Mass	kg	D is independently weighed positive accepted net as-received raw-mineral mass in kg at the declared gate, excluding packaging, returns and rejects. Measure wet-basis free moisture w with0 <= w <1; free-moisture-corrected mineral mass = D*(1-w), retaining D as reference denominator. Gypsum crystal water is part of its mineral phase, not free moisture; natural anhydrite is not assumed to have gypsum water content. Reconcile raw accepted mineral solids/phase, impurities, reject/slurry solids, stocks and dust separately from water intake/circulation/evaporation/discharge. Volume records require measured bulk density and moisture. Any observed dehydration or decarbonation triggers product-state and gate review, not automatic equivalence to raw gypsum or limestone.

5. System Boundary

Boundary Abstraction

Field	Value
declared_starting_condition	Actual gypsum/anhydrite/calcareous deposit for primary extraction, or supplied identified raw mineral/by-product with upstream burdens for standalone conditioning
starting_condition_role	Resource or supplied feed; declare which
product_classification_scope	Uncalcined gypsum and anhydrite; limestone flux; limestone and other calcareous lime/cement feed, with one actual phase, origin, grade and raw-mineral gate
recursive_input_rule	Purchased same-category material carries a distinct supplier dataset; internal recycling is a balance observation, not a new external input or credit.
upstream_dataset_requirement	Link feed, electricity, fuels, chemicals, infrastructure and waste-management burdens; disclose any missing coverage.
disclosure	site/year; gypsum/anhydrite/carbonate phase and origin; quarry/underground or supplied/by-product route; actual processing and absence of calcination; sulfate/carbonate/oxide and impurity assays; free moisture versus crystal water; grading/purity/reactivity for declared use; quarry/plant-receipt gate and included transport; accepted net output and stocks; water basin/return; waste fate; supplier allocation/cut-off; lifetime development output; representative UUID only for China natural gypsum quarried and delivered to plant, other minerals/source states/gates require distinct identity

rule_id	Applies to	Rule	source_ids
boundary_operations	site	Supply of uncalcined gypsum, anhydrite, limestone flux and limestone/other calcareous stone of a kind used for lime or cement manufacture at one declared raw-mineral gate. Cover quarry or actual underground extraction and standalone preparation of supplied burden-bearing minerals, including raw or actually crushed, washed, dried or ground grades that retain the declared raw-mineral identity. Do not narrow this category to gypsum. Gypsum dihydrate and natural anhydrite are distinct mineral states; drying must not silently become plaster calcination. Limestone flux and calcareous chemical-manufacture feed use actual mineral/oxide/impurity and reactive-quality evidence rather than a universal pure-CaCO3 composition. Where an industrial by-product gypsum is actually supplied under this uncalcined category, confirm its identity/grade and generating-process allocation/cut-off, record actual receiving, dewatering/washing/drying and supplier burdens separately; natural-gypsum evidence cannot establish its purity or zero upstream burden. Include attributable development/closure, handling, controls and delivery only through the explicitly chosen gate. Exclude calcined plaster, lime, clinker/cement manufacture and finished gypsum articles.	epa-gypsum-1993, epa-crushed-stone-2004, wco-hs25-2022, ifc-mining-2007
boundary_partition	all exchanges	Include actual conditioning, storage, handling and pollution controls through the declared gate. Account for attributable construction and closure with a disclosed lifetime-output basis or justified exclusion and sensitivity. Separate purchased fuel supply from foreground combustion and purchased treatment from site releases.
boundary_completeness	inventory	Cards define individual likely exchanges and route conditions, not an exhaustive site audit. Add each actual absent chemical, waste, resource, land transformation and pollutant as its own row. Absence, measured zero and unknown must be distinguished.

6. Process Inventory Structure

Process Map

process_id	process_name	inclusion	inclusion_condition	role	quantitative_reference
development	Mineral-deposit development and closure	conditional	Integrated primary mining with attributable rehabilitation	Foreground production	per 1 kg reference flow
extraction	Sulfate/carbonate mineral extraction	conditional	Actual quarry or underground mining	Foreground production	per 1 kg reference flow
preparation	Raw-mineral preparation and conditioning	conditional	Actual crushing/screening/washing/dewatering/drying/grinding, retaining raw state	Foreground production	per 1 kg reference flow
controls	Water, residue and dust controls	conditional	Actual site control/management	Foreground production	per 1 kg reference flow
delivery	Included mineral delivery	conditional	Only delivery explicitly within declared gate	Foreground production	per 1 kg reference flow
dispatch	Accepted mineral supply	required	Declared loading or plant-receipt gate	Foreground production	per 1 kg reference flow

Process: Mineral-deposit development and closure (development)

Inputs

Product flows

Development and rehabilitation diesel (development_diesel)

Actual stripping/restoration equipment, with measured lifetime-output attribution once.

• Selected flow: Diesel fuel 9d258d75-6792-4f1c-9856-81602ed8f816
• Flow property / unit: Mass / kg
• Amount rule: Collect the attributable reporting-period quantity under cp_development_diesel; divide by D after stock, transfer and allocation reconciliation.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_development_diesel
• Sources: epa-gypsum-1993, epa-crushed-stone-2004, wco-hs25-2022, ifc-mining-2007

Outputs

Waste flows

Mineral-deposit overburden (overburden)

Actual stripped covering material, distinct from mineral rejects, retained topsoil and habitat-specific land transformation.

• Selected flow: Mineral-deposit overburden
• Flow property / unit: Mass / kg
• Amount rule: Collect the attributable reporting-period quantity under cp_overburden; divide by D after stock, transfer and allocation reconciliation.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_overburden
• Sources: epa-gypsum-1993, epa-crushed-stone-2004, wco-hs25-2022, ifc-mining-2007

Process: Sulfate/carbonate mineral extraction (extraction)

Inputs

Product flows

Mining and onsite-haul diesel (mining_diesel)

Actual quarry/underground machinery and movement; distinguish delivery fuel and loading meters.

• Selected flow: Diesel fuel 9d258d75-6792-4f1c-9856-81602ed8f816
• Flow property / unit: Mass / kg
• Amount rule: Collect the attributable reporting-period quantity under cp_mining_diesel; divide by D after stock, transfer and allocation reconciliation.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_mining_diesel
• Sources: epa-gypsum-1993, epa-crushed-stone-2004, wco-hs25-2022, ifc-mining-2007

Extraction machinery electricity (mining_power)

This purchased electricity exchange requires independently confirmed actual supplier, consumption or production interface, geography, voltage, generation attributes and energy property/unit; its UUID remains unresolved until a compatible direct-read identity is confirmed. A waste-incineration generation flow must not represent arbitrary site power.

Actual drilling/pumping/underground ventilation/handling; record each actual route and avoid repeated shared metering.

• Selected flow: Electricity
• Flow property / unit: Net calorific value / MJ
• Amount rule: Collect the attributable reporting-period quantity under cp_mining_power; divide by D after stock, transfer and allocation reconciliation.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_mining_power
• Sources: epa-gypsum-1993, epa-crushed-stone-2004, wco-hs25-2022, ifc-mining-2007

Ammonium-nitrate/fuel-oil explosive (anfo)

Only actual ANFO blasting; unblasted gypsum/limestone routes exclude. Other actual explosives and detonators each separate.

• Selected flow: Ammonium-nitrate/fuel-oil explosive
• Flow property / unit: Mass / kg
• Amount rule: Collect the attributable reporting-period quantity under cp_anfo; divide by D after stock, transfer and allocation reconciliation.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_anfo
• Sources: epa-gypsum-1993, epa-crushed-stone-2004, wco-hs25-2022, ifc-mining-2007

Elementary flows

Gypsum mineral in deposit (gypsum_resource)

Only actual primary gypsum deposit mass; retain dihydrate/mineral assay, no pure-CaSO4 assumption.

• Selected flow: Gypsum mineral in deposit
• Flow property / unit: Mass / kg
• Amount rule: Collect the attributable reporting-period quantity under cp_gypsum_resource; divide by D after stock, transfer and allocation reconciliation.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_gypsum_resource
• Sources: epa-gypsum-1993, epa-crushed-stone-2004, wco-hs25-2022, ifc-mining-2007

Anhydrite mineral in deposit (anhydrite_resource)

Only actual natural anhydrite primary extraction; do not replace with generic sulfate released to environmental water/air.

• Selected flow: Anhydrite mineral in deposit
• Flow property / unit: Mass / kg
• Amount rule: Collect the attributable reporting-period quantity under cp_anhydrite_resource; divide by D after stock, transfer and allocation reconciliation.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_anhydrite_resource
• Sources: epa-gypsum-1993, epa-crushed-stone-2004, wco-hs25-2022, ifc-mining-2007

Limestone mineral in deposit (limestone_resource)

Only actual primary limestone deposit; other calcareous lithologies need their own resource identity/composition.

• Selected flow: Limestone mineral in deposit
• Flow property / unit: Mass / kg
• Amount rule: Collect the attributable reporting-period quantity under cp_limestone_resource; divide by D after stock, transfer and allocation reconciliation.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_limestone_resource
• Sources: epa-gypsum-1993, epa-crushed-stone-2004, wco-hs25-2022, ifc-mining-2007

Process: Raw-mineral preparation and conditioning (preparation)

Inputs

Product flows

Supplied raw gypsum (supplied_gypsum)

Only standalone natural-gypsum preparation, with supplier phase/state and burden; integrated internal feed cancels.

• Selected flow: Supplied raw gypsum
• Flow property / unit: Mass / kg
• Amount rule: Collect the attributable reporting-period quantity under cp_supplied_gypsum; divide by D after stock, transfer and allocation reconciliation.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_supplied_gypsum
• Sources: epa-gypsum-1993, epa-crushed-stone-2004, wco-hs25-2022, ifc-mining-2007

Supplied raw anhydrite (supplied_anhydrite)

Only actual supplied anhydrite with mineral/impurity assay and upstream burdens; no gypsum hydration identity substitution.

• Selected flow: Supplied raw anhydrite
• Flow property / unit: Mass / kg
• Amount rule: Collect the attributable reporting-period quantity under cp_supplied_anhydrite; divide by D after stock, transfer and allocation reconciliation.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_supplied_anhydrite
• Sources: epa-gypsum-1993, epa-crushed-stone-2004, wco-hs25-2022, ifc-mining-2007

Supplied raw limestone for chemical manufacture (supplied_limestone)

Only standalone limestone flux/lime-cement feed preparation, actual carbonate/impurity grade and supplier burdens.

• Selected flow: Supplied raw limestone for chemical manufacture
• Flow property / unit: Mass / kg
• Amount rule: Collect the attributable reporting-period quantity under cp_supplied_limestone; divide by D after stock, transfer and allocation reconciliation.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_supplied_limestone
• Sources: epa-gypsum-1993, epa-crushed-stone-2004, wco-hs25-2022, ifc-mining-2007

Supplied uncalcined FGD gypsum co-product (supplied_fgd_gypsum)

Only confirmed uncalcined FGD gypsum product with generating-process allocation/cut-off, impurity/moisture/state evidence and actual supplier burdens. Waste-classified feed requires a separate waste identity; other industrial gypsum each separate.

• Selected flow: Supplied uncalcined FGD gypsum co-product
• Flow property / unit: Mass / kg
• Amount rule: Collect the attributable reporting-period quantity under cp_supplied_fgd_gypsum; divide by D after stock, transfer and allocation reconciliation.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_supplied_fgd_gypsum
• Sources: epa-gypsum-1993, epa-crushed-stone-2004, wco-hs25-2022, ifc-mining-2007

Mineral-preparation electricity (preparation_power)

This purchased electricity exchange requires independently confirmed actual supplier, consumption or production interface, geography, voltage, generation attributes and energy property/unit; its UUID remains unresolved until a compatible direct-read identity is confirmed. A waste-incineration generation flow must not represent arbitrary site power.

Actual crushers/screens/mills/classifiers/filter/dewatering pumps; no universal grinding/drying stage, do not import calciner operations.

• Selected flow: Electricity
• Flow property / unit: Net calorific value / MJ
• Amount rule: Collect the attributable reporting-period quantity under cp_preparation_power; divide by D after stock, transfer and allocation reconciliation.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_preparation_power
• Sources: epa-gypsum-1993, epa-crushed-stone-2004, wco-hs25-2022, ifc-mining-2007

Purchased mineral-washing make-up water (wash_water)

Only new purchased water for actual washing; direct abstraction requires its own resource/basin row, internal circulation excluded.

• Selected flow: Process Water 94a04f7e-2d5c-41f0-b182-d54a3b373a02
• Flow property / unit: Mass / kg
• Amount rule: Collect the attributable reporting-period quantity under cp_wash_water; divide by D after stock, transfer and allocation reconciliation.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_wash_water
• Sources: epa-gypsum-1993, epa-crushed-stone-2004, wco-hs25-2022, ifc-mining-2007

Raw-mineral dryer natural gas (dryer_natural_gas)

Only actual gas-fired removal of free moisture, with confirmed retained mineral phase. Other fuels/heat each separate. If gypsum is calcined, revise to a different product gate.

• Selected flow: Raw-mineral dryer natural gas
• Flow property / unit: Mass / kg
• Amount rule: Collect the attributable reporting-period quantity under cp_dryer_natural_gas; divide by D after stock, transfer and allocation reconciliation.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_dryer_natural_gas
• Sources: epa-gypsum-1993, epa-crushed-stone-2004, wco-hs25-2022, ifc-mining-2007

Outputs

Waste flows

Rejected mineral rock pieces (mineral_reject)

Actual off-spec solid rock transferred to management; identify actual gypsum/anhydrite/carbonate grade separately, no assumed disposal credit.

• Selected flow: Rejected mineral rock pieces
• Flow property / unit: Mass / kg
• Amount rule: Collect the attributable reporting-period quantity under cp_mineral_reject; divide by D after stock, transfer and allocation reconciliation.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_mineral_reject
• Sources: epa-gypsum-1993, epa-crushed-stone-2004, wco-hs25-2022, ifc-mining-2007

Mineral-washing sludge (wash_sludge)

Actual wet washed-out fines/impurity stream with measured solids/mineral state and management fate; internal recovered solids exclude.

• Selected flow: Mineral-washing sludge
• Flow property / unit: Mass / kg
• Amount rule: Collect the attributable reporting-period quantity under cp_wash_sludge; divide by D after stock, transfer and allocation reconciliation.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_wash_sludge
• Sources: epa-gypsum-1993, epa-crushed-stone-2004, wco-hs25-2022, ifc-mining-2007

Process: Water, residue and dust controls (controls)

Inputs

Product flows

Water and dust-control electricity (control_power)

This purchased electricity exchange requires independently confirmed actual supplier, consumption or production interface, geography, voltage, generation attributes and energy property/unit; its UUID remains unresolved until a compatible direct-read identity is confirmed. A waste-incineration generation flow must not represent arbitrary site power.

Actual collector fans/treatment/recycle pumps; shared meters attributed once.

• Selected flow: Electricity
• Flow property / unit: Net calorific value / MJ
• Amount rule: Collect the attributable reporting-period quantity under cp_control_power; divide by D after stock, transfer and allocation reconciliation.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_control_power
• Sources: epa-gypsum-1993, epa-crushed-stone-2004, wco-hs25-2022, ifc-mining-2007

Outputs

Waste flows

Mineral collector dust transferred to disposal (collector_dust)

Actual captured dust transferred to management; saleable product and internal return have distinct balance roles.

• Selected flow: Mineral collector dust transferred to disposal
• Flow property / unit: Mass / kg
• Amount rule: Collect the attributable reporting-period quantity under cp_collector_dust; divide by D after stock, transfer and allocation reconciliation.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_collector_dust
• Sources: epa-gypsum-1993, epa-crushed-stone-2004, wco-hs25-2022, ifc-mining-2007

Mineral-process wastewater transferred for treatment (wastewater)

Actual purge/treatment transfer with volume and sulfate/carbonate/impurity assays; environmental discharge has its own volume and named species.

• Selected flow: Mineral-process wastewater transferred for treatment
• Flow property / unit: Volume / m3
• Amount rule: Collect the attributable reporting-period quantity under cp_wastewater; divide by D after stock, transfer and allocation reconciliation.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_wastewater
• Sources: epa-gypsum-1993, epa-crushed-stone-2004, wco-hs25-2022, ifc-mining-2007

Elementary flows

Mineral PM10 to outdoor air (pm10_air)

Actual quarry/haul/crusher/mill/dryer particulate releases after control, with mineral and particle-size basis.

• Selected flow: Mineral PM10 to outdoor air
• Flow property / unit: Mass / kg
• Amount rule: Collect the attributable reporting-period quantity under cp_pm10_air; divide by D after stock, transfer and allocation reconciliation.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_pm10_air
• Sources: epa-gypsum-1993, epa-crushed-stone-2004, wco-hs25-2022, ifc-mining-2007

Fossil carbon dioxide to outdoor air (co2_air)

Actual foreground fuel combustion only, traceable fuel/carbon factor; mechanical limestone processing is not decarbonation and gypsum crystal water is not carbon dioxide.

• Selected flow: carbon dioxide (fossil) 08a91e70-3ddc-11dd-923d-0050c2490048
• Flow property / unit: Mass / kg
• Amount rule: Collect the attributable reporting-period quantity under cp_co2_air; divide by D after stock, transfer and allocation reconciliation.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_co2_air
• Sources: epa-gypsum-1993, epa-crushed-stone-2004, wco-hs25-2022, ifc-mining-2007

Dissolved sulfate released to receiving water (sulfate_water)

Only actual sulfate-bearing discharge with identified receiving compartment; measure dissolved sulfate, net water volume and background separately, not assumed total gypsum loss.

• Selected flow: Dissolved sulfate released to receiving water
• Flow property / unit: Mass / kg
• Amount rule: Collect the attributable reporting-period quantity under cp_sulfate_water; divide by D after stock, transfer and allocation reconciliation.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_sulfate_water
• Sources: epa-gypsum-1993, epa-crushed-stone-2004, wco-hs25-2022, ifc-mining-2007

Process: Included mineral delivery (delivery)

Inputs

Product flows

Included mineral-delivery diesel (delivery_diesel)

Only fuel within explicitly foreground-modelled delivery through chosen receipt gate; record actual route/load/empty return. Outsourced transport provider burdens are linked distinctly and must not duplicate this fuel. Quarry-loading-only gate excludes downstream delivery.

• Selected flow: Diesel fuel 9d258d75-6792-4f1c-9856-81602ed8f816
• Flow property / unit: Mass / kg
• Amount rule: Collect the attributable reporting-period quantity under cp_delivery_diesel; divide by D after stock, transfer and allocation reconciliation.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_delivery_diesel
• Sources: epa-gypsum-1993, epa-crushed-stone-2004, wco-hs25-2022, ifc-mining-2007

Process: Accepted mineral supply (dispatch)

Inputs

Product flows

Accepted mineral handling diesel (loading_diesel)

Actual loading/receipt handling within gate, distinct from extraction haul and delivery fuel.

• Selected flow: Diesel fuel 9d258d75-6792-4f1c-9856-81602ed8f816
• Flow property / unit: Mass / kg
• Amount rule: Collect the attributable reporting-period quantity under cp_loading_diesel; divide by D after stock, transfer and allocation reconciliation.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_loading_diesel
• Sources: epa-gypsum-1993, epa-crushed-stone-2004, wco-hs25-2022, ifc-mining-2007

Outputs

Product flows

Natural gypsum delivered at the declared plant gate (final_product)

Verified representative is China natural gypsum quarried and delivered to plant. Include agreed delivery to that receipt gate; quarry-only gypsum, other origins, industrial gypsum, anhydrite, limestone flux and other calcareous feed require their own actual product identities.

• Selected flow: Natural gypsum a4be0b17-8763-439c-a818-30b9b4afeed3
• Flow property / unit: Mass / kg
• Amount rule: 1 kg
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per 1 kg reference flow
• Basis kind: reference_flow
• Evidence kind: collected_record
• Collection protocol: cp_output
• Sources: epa-gypsum-1993, epa-crushed-stone-2004, wco-hs25-2022, ifc-mining-2007

7. Allocation and Co-product Handling

rule_id	Applies to	Rule	source_ids
allocation_hierarchy	joint production	Prefer process subdivision or defensible system expansion; otherwise use demonstrated physical causality. Use economic allocation only with consistent period, price, currency and sensitivity when physical causality is unavailable. Retain the unallocated inventory.	ef-allocation-2021
allocation_product	reference and co-products	Subdivide mineral extraction, grade preparation and optional delivery where possible. Retain unallocated joint-grade inventory and justify physical causality or economic alternative with matched quality/moisture/period. Industrial by-product gypsum carries a documented generating-process allocation/cut-off and actual conditioning/transport; neither disposal avoidance nor natural-gypsum substitution automatically creates credit. Attribute development/closure once over measured lifetime accepted output. Reject sold for another use is not automatically a burden-free co-product; internal recycle receives no duplicate new-supply burden.
allocation_waste	waste and recycling	Classify each output by physical state and actual fate. A sale does not automatically make a residue a co-product; internal recycling receives no avoided-product credit. Apply treatment burdens once.

8. Foreground Data Collection, Calculation, and Quality Rules

Data Collection Protocols

protocol_id	process_id	flow_role	record_type	raw_fields	collection_method	unit	frequency	temporal_coverage	site_scope	aggregation_rule	quality_evidence
cp_development_diesel	development	development_diesel	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One raw/processed uncalcined mineral grade with actual moisture and chemical phase, at declared quarry/processing loading or explicitly included plant-receipt delivery gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_overburden	development	overburden	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One raw/processed uncalcined mineral grade with actual moisture and chemical phase, at declared quarry/processing loading or explicitly included plant-receipt delivery gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_gypsum_resource	extraction	gypsum_resource	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One raw/processed uncalcined mineral grade with actual moisture and chemical phase, at declared quarry/processing loading or explicitly included plant-receipt delivery gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_anhydrite_resource	extraction	anhydrite_resource	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One raw/processed uncalcined mineral grade with actual moisture and chemical phase, at declared quarry/processing loading or explicitly included plant-receipt delivery gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_limestone_resource	extraction	limestone_resource	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One raw/processed uncalcined mineral grade with actual moisture and chemical phase, at declared quarry/processing loading or explicitly included plant-receipt delivery gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_mining_diesel	extraction	mining_diesel	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One raw/processed uncalcined mineral grade with actual moisture and chemical phase, at declared quarry/processing loading or explicitly included plant-receipt delivery gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_mining_power	extraction	mining_power	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	MJ	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One raw/processed uncalcined mineral grade with actual moisture and chemical phase, at declared quarry/processing loading or explicitly included plant-receipt delivery gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_anfo	extraction	anfo	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One raw/processed uncalcined mineral grade with actual moisture and chemical phase, at declared quarry/processing loading or explicitly included plant-receipt delivery gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_supplied_gypsum	preparation	supplied_gypsum	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Match net received mass, free moisture, actual crystal/mineral phase and impurity/reactive-grade assays to supplier batches; reconcile opening/closing stock and internal transfers. Retain source/generating-process identity, upstream allocation/cut-off and delivery provider, not an assumed virgin substitute or zero burden.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One raw/processed uncalcined mineral grade with actual moisture and chemical phase, at declared quarry/processing loading or explicitly included plant-receipt delivery gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_supplied_anhydrite	preparation	supplied_anhydrite	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Match net received mass, free moisture, actual crystal/mineral phase and impurity/reactive-grade assays to supplier batches; reconcile opening/closing stock and internal transfers. Retain source/generating-process identity, upstream allocation/cut-off and delivery provider, not an assumed virgin substitute or zero burden.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One raw/processed uncalcined mineral grade with actual moisture and chemical phase, at declared quarry/processing loading or explicitly included plant-receipt delivery gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_supplied_limestone	preparation	supplied_limestone	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Match net received mass, free moisture, actual crystal/mineral phase and impurity/reactive-grade assays to supplier batches; reconcile opening/closing stock and internal transfers. Retain source/generating-process identity, upstream allocation/cut-off and delivery provider, not an assumed virgin substitute or zero burden.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One raw/processed uncalcined mineral grade with actual moisture and chemical phase, at declared quarry/processing loading or explicitly included plant-receipt delivery gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_supplied_fgd_gypsum	preparation	supplied_fgd_gypsum	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Match net received mass, free moisture, actual crystal/mineral phase and impurity/reactive-grade assays to supplier batches; reconcile opening/closing stock and internal transfers. Retain source/generating-process identity, upstream allocation/cut-off and delivery provider, not an assumed virgin substitute or zero burden.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One raw/processed uncalcined mineral grade with actual moisture and chemical phase, at declared quarry/processing loading or explicitly included plant-receipt delivery gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_preparation_power	preparation	preparation_power	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	MJ	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One raw/processed uncalcined mineral grade with actual moisture and chemical phase, at declared quarry/processing loading or explicitly included plant-receipt delivery gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_wash_water	preparation	wash_water	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One raw/processed uncalcined mineral grade with actual moisture and chemical phase, at declared quarry/processing loading or explicitly included plant-receipt delivery gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_dryer_natural_gas	preparation	dryer_natural_gas	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Meter actual fuel and composition/calorific basis for matched drying campaign, record inlet/outlet free moisture, mineral-phase checks and thermal settings; distinguish free-water removal from chemically bound-water release before assigning raw-product output.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One raw/processed uncalcined mineral grade with actual moisture and chemical phase, at declared quarry/processing loading or explicitly included plant-receipt delivery gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_mineral_reject	preparation	mineral_reject	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One raw/processed uncalcined mineral grade with actual moisture and chemical phase, at declared quarry/processing loading or explicitly included plant-receipt delivery gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_wash_sludge	preparation	wash_sludge	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One raw/processed uncalcined mineral grade with actual moisture and chemical phase, at declared quarry/processing loading or explicitly included plant-receipt delivery gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_control_power	controls	control_power	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	MJ	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One raw/processed uncalcined mineral grade with actual moisture and chemical phase, at declared quarry/processing loading or explicitly included plant-receipt delivery gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_collector_dust	controls	collector_dust	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One raw/processed uncalcined mineral grade with actual moisture and chemical phase, at declared quarry/processing loading or explicitly included plant-receipt delivery gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_wastewater	controls	wastewater	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	m3	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One raw/processed uncalcined mineral grade with actual moisture and chemical phase, at declared quarry/processing loading or explicitly included plant-receipt delivery gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_pm10_air	controls	pm10_air	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One raw/processed uncalcined mineral grade with actual moisture and chemical phase, at declared quarry/processing loading or explicitly included plant-receipt delivery gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_co2_air	controls	co2_air	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One raw/processed uncalcined mineral grade with actual moisture and chemical phase, at declared quarry/processing loading or explicitly included plant-receipt delivery gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_sulfate_water	controls	sulfate_water	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Pair representative dissolved-sulfate concentration mg/L with calibrated net receiving-water discharge m3 for the same period: sulfate kg = concentration mg/L * volume m3 /1000. Retain background/reference-water sampling and uncertainty separately, no automatic chemical stoichiometry conversion.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One raw/processed uncalcined mineral grade with actual moisture and chemical phase, at declared quarry/processing loading or explicitly included plant-receipt delivery gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_delivery_diesel	delivery	delivery_diesel	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One raw/processed uncalcined mineral grade with actual moisture and chemical phase, at declared quarry/processing loading or explicitly included plant-receipt delivery gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_loading_diesel	dispatch	loading_diesel	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Calibrated weighing, metering or traceable transfer records; reconcile period, opening/closing stock, actual grade and boundary.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One raw/processed uncalcined mineral grade with actual moisture and chemical phase, at declared quarry/processing loading or explicitly included plant-receipt delivery gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty
cp_output	dispatch	final_product	measurement_record	period; site; amount; original unit; uncertainty; stock changes; route condition; allocation; D; product qualifiers	Independently weigh positive net accepted kg D at chosen loading or plant receipt with calibrated scale; reconcile packaging, returns and stocks. Match mineral phase, free moisture and chemical/grade assays to the same batches. Volume records require measured bulk density/moisture; phase changes require gate review. The representative plant-delivered UUID cannot represent a quarry-only gate without a distinct identity.	kg	Each meter interval or shipment; monthly reconciliation	Complete year or justified representative production campaign	One raw/processed uncalcined mineral grade with actual moisture and chemical phase, at declared quarry/processing loading or explicitly included plant-receipt delivery gate	per 1 kg reference flow	Calibration; original records; assay; balance residuals; uncertainty

Calculation Rules

rule_id	Applies to	Formula or rule	Inputs	Output	source_ids
normalization	all cards	Exchange = attributable period quantity / D. Reconcile inventories and cancel internal transfers before aggregation.	cp_output; row-specific cp records	per 1 kg reference flow
physical_balance	production	D is independently weighed positive accepted net as-received raw-mineral mass in kg at the declared gate, excluding packaging, returns and rejects. Measure wet-basis free moisture w with0 <= w <1; free-moisture-corrected mineral mass = D*(1-w), retaining D as reference denominator. Gypsum crystal water is part of its mineral phase, not free moisture; natural anhydrite is not assumed to have gypsum water content. Reconcile raw accepted mineral solids/phase, impurities, reject/slurry solids, stocks and dust separately from water intake/circulation/evaporation/discharge. Volume records require measured bulk density and moisture. Any observed dehydration or decarbonation triggers product-state and gate review, not automatic equivalence to raw gypsum or limestone.	Matched mass, volume, composition and stock measurements	Balance residual and uncertainty

Data Quality Requirements

requirement_id	Applies to	Requirement	Evidence
representativeness	dataset	Use matching production and exchange periods, actual technology, geography and supplier state. Record startup, shutdown, seasonal variation and substitutions.	collection records
identity_and_ranges	all cards	Unresolved identities and missing independent range evidence remain explicit. Do not replace measurement by a guessed industry range or by missing-as-zero.	manifest review metadata

9. Validation Rules

rule_id	Applies to	Rule	source_ids
validate_reference	final_product	Verify 1 kg, positive D, product state, property/unit and every required qualifier. Each dataset fixes one product and route.
validate_balance	site	D is independently weighed positive accepted net as-received raw-mineral mass in kg at the declared gate, excluding packaging, returns and rejects. Measure wet-basis free moisture w with0 <= w <1; free-moisture-corrected mineral mass = D*(1-w), retaining D as reference denominator. Gypsum crystal water is part of its mineral phase, not free moisture; natural anhydrite is not assumed to have gypsum water content. Reconcile raw accepted mineral solids/phase, impurities, reject/slurry solids, stocks and dust separately from water intake/circulation/evaporation/discharge. Volume records require measured bulk density and moisture. Any observed dehydration or decarbonation triggers product-state and gate review, not automatic equivalence to raw gypsum or limestone.
validate_coverage	handoff	Verify each applicable exchange, its provider or environmental compartment and final waste fate; identify skipped checks, unresolved identities, missing measurements and upstream gaps. Errors or unassessed mandatory coverage cannot be labelled complete.

10. Published Dataset Profile

Field	Value
dataset_role	foreground_dataset
downstream_use	secondary_dataset; background_dataset
allowed_use	Supply1 kg of qualified uncalcined gypsum, anhydrite or calcareous flux/feed in its declared state; no performance-equivalence claim across sulfate/carbonate minerals
excluded_use	Calcined gypsum/stucco/plaster; gypsum wallboard and formulated articles; quicklime/slaked lime; clinker/cement; dimension-stone articles or ordinary aggregate reference; spent contaminated mineral waste not qualified as this product
required_metadata	site/year; gypsum/anhydrite/carbonate phase and origin; quarry/underground or supplied/by-product route; actual processing and absence of calcination; sulfate/carbonate/oxide and impurity assays; free moisture versus crystal water; grading/purity/reactivity for declared use; quarry/plant-receipt gate and included transport; accepted net output and stocks; water basin/return; waste fate; supplier allocation/cut-off; lifetime development output; representative UUID only for China natural gypsum quarried and delivered to plant, other minerals/source states/gates require distinct identity
required_quality_disclosure	Identity and measurement gaps; boundary coverage; uncertainty; allocation; temporal and geographical representativeness
update_trigger	Changed product, route, yield, supply, waste fate, site or representative period

11. Data Sources

Source id	Type	Reference	Used for
epa-gypsum-1993	official_guidance	US EPA, AP-42 section 11.16 Gypsum Manufacturing, July 1993, reformatted January 1995, original PDF pp.1–2. https://www.epa.gov/sites/default/files/2020-10/documents/c11s16.pdf	Raw-gypsum quarry/underground extraction, crushing/screening and actual drying/grinding before calcination; qualitative process/gate support only, no historic quantity defaults.
epa-crushed-stone-2004	official_guidance	US EPA, AP-42 section 11.19.2 Crushed Stone Processing and Pulverized Mineral Processing, August 2004, original PDF pp.1–5. https://www.epa.gov/sites/default/files/2020-10/documents/c11s1902.pdf	Actual limestone/calcareous-rock extraction, crushing/screening, grinding and dust controls; not lime/cement calcination or an assumed pure composition.
wco-hs25-2022	official_guidance	WCO, HS Nomenclature 2022 Chapter25, original PDF p.4, headings2520/2521 and downstream2522/2523. https://www.wcoomd.org/-/media/wco/public/global/pdf/topics/nomenclature/instruments-and-tools/hs-nomenclature-2022/2022/0525_2022e.pdf?la=en	Gypsum/anhydrite and limestone-flux/lime-cement raw-stone boundary, distinct from plasters/lime/cement; identity only, no process quantities.
ifc-mining-2007	official_guidance	IFC, Environmental Health and Safety Guidelines for Mining, 10 December 2007, sections 1.1 and Annex A. https://www.ifc.org/content/dam/ifc/doc/2000/2007-mining-ehs-guidelines-en.pdf	Mining water, wastes, emissions, development and closure; no product-specific default factors.
cpc3-notes-2025	official_guidance	UNSD, CPC Version 3.0 Explanatory Notes, 30 June 2025. https://unstats.un.org/unsd/classifications/Econ/Download/In%20Text/CPC_Ver_3.0_Exp_Notes_30Jun2025.pdf	Classification scope only; no process quantities.
ef-allocation-2021	official_guidance	Commission Recommendation (EU) 2021/2279, Annex I section 4.5, consolidated 30 December 2021. https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:02021H2279-20211230	Multifunctionality hierarchy; not a claim of complete PEF conformity.