Definition
Migmatite is typically a granitic rock within a metamorphic host rock which is composed of two intermingled but distinguishable components
Jaspillite is an iron rich chemically formed rock which is common in banded iron formation rocks
History
Origin
Southern Alps, France
Western Australia, Minnesota
Discoverer
Jakob Sederholm
Unknown
Etymology
From the Greek word migma which means a mixture
From Jaspilite (Mineral), a compact siliceous rock which resembles jasper
Class
Metamorphic Rocks
Sedimentary Rocks
Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Soft Rock
Family
Group
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Other Categories
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Coarse Grained Rock, Opaque Rock