Definition
Granulite is fine to medium grained metamorphic rock with a granular of polygonal crystals.
Pyrolite is an igneous rock consisting of about three parts of peridotite and one part of basalt
History
Origin
Central Europe
Pike County, U.S
Discoverer
Unknown
Unknown
Etymology
From Latin granulum, a little grain or fine grained
From the chemical and mineralogical composition of the upper mantle of the Earth
Class
Metamorphic Rocks
Igneous Rocks
Sub-Class
Durable Rock, Hard Rock
Durable Rock, Medium Hardness Rock
Family
Group
-
Plutonic
Other Categories
Coarse Grained Rock, Medium Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock