Definition
Dunite is a green to brownish coarse-grained igneous rock mainly consisting of olivine
Granite is a very hard, granular, crystalline igneous rock which consists mainly of quartz, mica, and feldspar and is often used as building stone
History
Origin
New Zealand
-
Discoverer
Ferdinand von Hochstetter
Alexander von Humboldt
Etymology
From the name of Dun Mountain, New Zealand, + -ite1
From Italian granito, which means grained rock, from grano grain, and from Latin granum
Class
Igneous Rocks
Igneous Rocks
Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Hard Rock
Family
Group
Plutonic
Plutonic
Other Categories
Coarse Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock