Definition
Dunite is a green to brownish coarse-grained igneous rock mainly consisting of olivine
Oolite is a sedimentary rock formed from ooids, spherical grains which are composed of concentric layers of calcite
History
Origin
New Zealand
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Discoverer
Ferdinand von Hochstetter
William Smith
Etymology
From the name of Dun Mountain, New Zealand, + -ite1
From oo- + -lite, after German Oolit. A rock consisting of fine grains of carbonate of lime
Class
Igneous Rocks
Sedimentary Rocks
Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Medium Hardness Rock
Family
Group
Plutonic
Volcanic
Other Categories
Coarse Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock