Formation
Anthracite forms from the accumulation of plant debris in a swamp environment. When plant debris dies and falls into the swamp, the standing water of the swamp protects it from decay.
Composition
Mineral Content
Calcite, Clay, Clay Minerals
Compound Content
Carbon, Hydrogen, Nitrogen, Oxygen, Sulphur
Transformation
Metamorphism
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50% - Metamorphic Rocks Rocks have it !
Types of Metamorphism
Burial Metamorphism, Contact Metamorphism, Regional Metamorphism
Weathering
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65% - Metamorphic Rocks Rocks
Types of Weathering
-
Erosion
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77% - Metamorphic Rocks Rocks
Types of Erosion
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