Definition
Anthracite is a type of sedimentary rock which is hard and is variety of coal that has high luster
A water-soluble mineral sediment resulting from concentration and crystallization by evaporation from an aqueous solution
History
Origin
Pennsylvania, U.S.
USA
Discoverer
Unknown
Usiglio
Etymology
From Greek anthrakites, from anthrax, anthrak meaning coal
From a sediment left after the evaporation
Class
Metamorphic Rocks
Sedimentary Rocks
Sub-Class
Durable Rock, Soft Rock
Durable Rock, Soft Rock
Family
Group
-
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Other Categories
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock