Definition
Dunite is a green to brownish coarse-grained igneous rock mainly consisting of olivine
Anthracite is a type of sedimentary rock which is hard and is variety of coal that has high luster
History
Origin
New Zealand
Pennsylvania, U.S.
Discoverer
Ferdinand von Hochstetter
Unknown
Etymology
From the name of Dun Mountain, New Zealand, + -ite1
From Greek anthrakites, from anthrax, anthrak meaning coal
Class
Igneous Rocks
Metamorphic Rocks
Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Soft Rock
Family
Group
Plutonic
-
Other Categories
Coarse Grained Rock, Opaque Rock
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock