Definition
Anthracite is a type of sedimentary rock which is hard and is variety of coal that has high luster
Taconite is a low-grade iron ore which belongs to sedimentary rock and containing about 27% iron and 51% silica
History
Origin
Pennsylvania, U.S.
Western Australia, Minnesota
Discoverer
Unknown
Newton Horace Winchell
Etymology
From Greek anthrakites, from anthrax, anthrak meaning coal
From the name of Taconic Mountains in New England
Class
Metamorphic Rocks
Sedimentary Rocks
Sub-Class
Durable Rock, Soft Rock
Durable Rock, Medium Hardness Rock
Family
Group
-
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Other Categories
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock