Definition
Jasperoid is a rare, peculiar type of metasomatic alteration of rocks
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 silica, the main mineral content of Jasperoid
From the name of Dun Mountain, New Zealand, + -ite1
Class
Sedimentary Rocks
Igneous Rocks
Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Medium Hardness Rock
Family
Group
-
Plutonic
Other Categories
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock