Definition
Dunite is a green to brownish coarse-grained igneous rock mainly consisting of olivine
Slate is a fine-grained, foliated, homogeneous metamorphic rock derived from an original shale-type sedimentary rock composed of clay or volcanic ash through low-grade regional metamorphism
History
Origin
New Zealand
England
Discoverer
Ferdinand von Hochstetter
Abraham Gottlob Werner
Etymology
From the name of Dun Mountain, New Zealand, + -ite1
From Old French esclate, from esclat (French éclat)
Class
Igneous Rocks
Metamorphic Rocks
Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Medium Hardness Rock
Family
Group
Plutonic
-
Other Categories
Coarse Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock