Definition
It is a metamorphic magnesium rich rock because it is composed of the mineral talc
Dunite is a green to brownish coarse-grained igneous rock mainly consisting of olivine
History
Origin
USA
New Zealand
Discoverer
Unknown
Ferdinand von Hochstetter
Etymology
From 17th century, because of its greasy feel and use like a soap
From the name of Dun Mountain, New Zealand, + -ite1
Class
Metamorphic Rocks
Igneous Rocks
Sub-Class
Durable Rock, Soft Rock
Durable Rock, Medium Hardness Rock
Family
Group
-
Plutonic
Other Categories
Fine Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock