Definition
Anthracite is a type of sedimentary rock which is hard and is variety of coal that has high luster
Breccia is a rock consisting of angular fragments of stones which are cemented by finer calcareous material
History
Origin
Pennsylvania, U.S.
England
Discoverer
Unknown
Unknown
Etymology
From Greek anthrakites, from anthrax, anthrak meaning coal
From Italian, literally gravel, Germanic origin and related to break
Class
Metamorphic Rocks
Sedimentary Rocks
Sub-Class
Durable Rock, Soft Rock
Durable Rock, Hard Rock
Family
Group
-
-
Other Categories
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Coarse Grained Rock, Medium Grained Rock, Opaque Rock