Definition
Carbonatite is intrusive or extrusive igneous rock which is defined by mineralogic composition, consisting of greater than 50 percent carbonate minerals
Dunite is a green to brownish coarse-grained igneous rock mainly consisting of olivine
History
Origin
Tanzania
New Zealand
Discoverer
Unknown
Ferdinand von Hochstetter
Etymology
From any intrusive igneous rock, having a majority of carbonate minerals
From the name of Dun Mountain, New Zealand, + -ite1
Class
Igneous Rocks
Igneous Rocks
Sub-Class
Durable Rock, Soft Rock
Durable Rock, Medium Hardness Rock
Family
Group
Plutonic
Plutonic
Other Categories
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock