Definition
Peridotite is a dense, coarse-grained plutonic is the main constituent of the earth's mantle
It is a metamorphic magnesium rich rock because it is composed of the mineral talc
History
Origin
Pike County, U.S
USA
Discoverer
Unknown
Unknown
Etymology
From French, from peridot + -ite
From 17th century, because of its greasy feel and use like a soap
Class
Igneous Rocks
Metamorphic Rocks
Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Soft Rock
Family
Group
Plutonic
-
Other Categories
Coarse Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock