Definition
Wehrlite is an ultramafic and ultrabasic rock that is a mixture of olivine and clinopyroxene. It is a subdivision of the peridotites
Tuff is a type of rock made of volcanic ash ejected from a vent during a volcanic eruption
History
Origin
Egypt
Italy
Discoverer
Alois Wehrle
Unknown
Etymology
From the name of a professor, Alois Wehrle
From a Latin word tophous then in Italian tufo and finally tuff
Class
Igneous Rocks
Igneous Rocks
Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Medium Hardness Rock
Family
Group
Plutonic
Volcanic
Other Categories
Coarse Grained Rock, Opaque Rock
Fine Grained Rock, Opaque Rock