Definition
Wehrlite is an ultramafic and ultrabasic rock that is a mixture of olivine and clinopyroxene. It is a subdivision of the peridotites
Gritstone or grit is a hard, coarse-grained, siliceous sandstone
History
Origin
Egypt
Pennines, England
Discoverer
Alois Wehrle
J.J. Ferber
Etymology
From the name of a professor, Alois Wehrle
From Grit + Stone
Class
Igneous Rocks
Sedimentary Rocks
Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Hard Rock
Family
Group
Plutonic
-
Other Categories
Coarse Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock