Definition
Websterite is ultramafic and ultrabasic rock that consists of roughly equal proportions of orthopyroxene and clinopyroxene. It is a special type of pyroxenite.
Peridotite is a dense, coarse-grained plutonic is the main constituent of the earth's mantle
History
Origin
Webster, North Carolina
Pike County, U.S
Discoverer
Unknown
Unknown
Etymology
From the town of Webster located in North Carolina
From French, from peridot + -ite
Class
Igneous Rocks
Igneous Rocks
Sub-Class
Durable Rock, Hard Rock
Durable Rock, Medium Hardness Rock
Family
Group
Plutonic
Plutonic
Other Categories
Coarse Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock