Definition
Websterite is ultramafic and ultrabasic rock that consists of roughly equal proportions of orthopyroxene and clinopyroxene. It is a special type of pyroxenite.
Banded iron formation are distinctive units of sedimentary rock that are almost always of Precambrian age
History
Origin
Webster, North Carolina
Western Australia, Minnesota
Discoverer
Unknown
Johann Gottlob Lehmann
Etymology
From the town of Webster located in North Carolina
From its formation process
Class
Igneous Rocks
Sedimentary Rocks
Sub-Class
Durable Rock, Hard Rock
Durable Rock, Medium Hardness Rock
Family
Group
Plutonic
-
Other Categories
Coarse Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock