Definition
Migmatite is typically a granitic rock within a metamorphic host rock which is composed of two intermingled but distinguishable components
Pyrolite is an igneous rock consisting of about three parts of peridotite and one part of basalt
History
Origin
Southern Alps, France
Pike County, U.S
Discoverer
Jakob Sederholm
Unknown
Etymology
From the Greek word migma which means a mixture
From the chemical and mineralogical composition of the upper mantle of the Earth
Class
Metamorphic Rocks
Igneous Rocks
Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Medium Hardness Rock
Family
Group
-
Plutonic
Other Categories
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock