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Migmatite
A species of Metamorphic Scientific name : Migmatite RockType : Metamorphic
Migmatite, A species of Metamorphic
Scientific name: Migmatite
RockType: Metamorphic
Content
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Description
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A migmatite is a hybrid rock of sorts; it contains both igneous and metamorphic components, often in alternating layers. These layers tend to create striking, dark-and-light banding or waving patterns. Though they may be geologically fascinating and pretty to look at, migmatites have few commercial or industrial uses.
Physical Properties
Colors
Light-colored, dark colored
Texture
Foliated
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People often ask
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General Info
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Usage
Migmatite is rarely used outside of the construction industry, and is a commonly used stone for creating foundations, flooring, and walls. When polished, it is an attractive choice for countertops and work surfaces. When crushed, it can be used in the creation of cement and road aggregate.
Composition
It consists of two or more constituents often layered repetitively; one layer was formerly paleosome, a metamorphic rock that was reconstituted subsequently by partial melting; the alternate layer has a pegmatitic, aplitic, granitic or generally plutonic appearance.
Formation
Migmatite form under extreme temperature and pressure conditions during prograde metamorphism, when partial melting occurs in metamorphic paleosome. Components exsolved by partial melting are called neosome (meaning ‘new body’), which may or may not be heterogeneous at the microscopic to macroscopic scale.