Lignite
A rock classification type
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About Lignite
A consolidated, dull, soft brown to black coal with visible plant fragments set in a finer grained matrix. 60-75% carbon content dry ash free, 46-63% volatiles.
A carbon-poor and humidity-rich variety of coal which retains the structure of the original wood.
It is often referred to as brown coal, and is considered the lowest rank of coal (carbon content is only around 25-35%).
Lignite can be separated into two types. The first is xyloid lignite or fossil wood and the second form is the compact lignite or perfect lignite.
Lignite is geologically younger than higher-grade coals, originating mainly in the Tertiary period.
A carbon-poor and humidity-rich variety of coal which retains the structure of the original wood.
It is often referred to as brown coal, and is considered the lowest rank of coal (carbon content is only around 25-35%).
Lignite can be separated into two types. The first is xyloid lignite or fossil wood and the second form is the compact lignite or perfect lignite.
Lignite is geologically younger than higher-grade coals, originating mainly in the Tertiary period.
Unique Identifiers
Mindat ID:
9354
Long-form identifier:
mindat:1:1:9354:1
GUID
(UUID V4):
(UUID V4):
d724dbd0-1310-4448-8664-4071e50827a1
Classification of Lignite
Sub-divisions of Lignite
- Lignite
Synonyms of Lignite
Other Language Names for Lignite
Common Associates
Associated Minerals Based on Photo Data:
5 photos of Lignite associated with Gypsum | CaSO4 · 2H2O |
4 photos of Lignite associated with Agate | |
4 photos of Lignite associated with Marcasite | FeS2 |
3 photos of Lignite associated with Messelite | Ca2Fe2+(PO4)2 · 2H2O |
2 photos of Lignite associated with Bituminous-coal | |
1 photo of Lignite associated with Uraninite | UO2 |
1 photo of Lignite associated with Duxite | C10H16O + (H2S) |
1 photo of Lignite associated with Vitrain |
Internet Links for Lignite
mindat.org URL:
https://www.mindat.org/min-9354.html
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References for Lignite
Reference List:
Moab, Grand County, Utah, USA