1 Definition
1.1 Definition
Anthracite is a type of sedimentary rock which is hard and is variety of coal that has high luster
Gossan is intensely oxidized, weathered or decomposed rock, usually the upper and exposed part of an ore deposit or mineral vein.
1.2 History
1.2.1 Origin
Pennsylvania, U.S.
Indonesia
1.2.2 Discoverer
1.3 Etymology
From Greek anthrakites, from anthrax, anthrak meaning coal
From Cornish gossen from gos, blood from Old Cornish guit
1.4 Class
Metamorphic Rocks
Metamorphic Rocks
1.4.1 Sub-Class
Durable Rock, Soft Rock
Durable Rock, Medium Hardness Rock
1.5 Family
1.5.1 Group
Not Applicable
Not Applicable
1.6 Other Categories
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Fine Grained Rock, Medium Grained Rock, Opaque Rock