- https://data.geoscience.earth/ncl
- INSPIRE
- LithologyValue
- _860e39fb-ed68-4768-968e-c361f3869509
Entry: lignite
URI: http://inspire.ec.europa.eu/codelist/LithologyValue/lignite
Coal that has a gross calorific value less than 24 MJ/kg (determined in conformance with ISO 1928), and vitrinite mean random reflectance less than 0.6% (determined in conformance with ISO 7404-5). Gross calorific value is recalculated to a moist, ash free basis using bed moisture (determined according to ISO 1015 or ISO 5068). Includes all low-rank coals, including sub-bitiminous coal. A consolidated, dull, soft brown to black coal having many readily discernible plant fragments set in a finer grained organic matrix. Tends to crack and fall apart on drying. Operationally sub-bituminous and bitiminous coal are qualitatively distinguished based on brown streak for sub-bitiminous coal and black streak for bituminous coal.
Core metadata
| is a | Concept |
| submitted by | Sophie Chaduteau |
| accepted on | 16 Jul 2026 11:53:11.321 |
Download formats available
| RDF ttl | plain | with metadata |
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| Export all | export |
All metadata properties
| date accepted |
16 Jul 2026 11:53:11.321
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| date submitted |
16 Jul 2026 09:17:50.221
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| definition |
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| item class |
Concept
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| label |
lignite
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| notation |
860e39fb-ed68-4768-968e-c361f3869509
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| register |
lithology value
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| status |
status experimental
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| submitter |
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| type |
register item
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| version info |
2
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Definition
| broader |
coal
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| definition |
Coal that has a gross calorific value less than 24 MJ/kg (determined in conformance with ISO 1928), and vitrinite mean random reflectance less than 0.6% (determined in conformance with ISO 7404-5). Gross calorific value is recalculated to a moist, ash free basis using bed moisture (determined according to ISO 1015 or ISO 5068). Includes all low-rank coals, including sub-bitiminous coal. A consolidated, dull, soft brown to black coal having many readily discernible plant fragments set in a finer grained organic matrix. Tends to crack and fall apart on drying. Operationally sub-bituminous and bitiminous coal are qualitatively distinguished based on brown streak for sub-bitiminous coal and black streak for bituminous coal.
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| notation |
lignite
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| pref label |
lignite
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| type |
Concept
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