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CratonLab / Textures / Gneissic banding

Metamorphic texture

Gneissic banding texture

Compositional bands in gneiss, typically lighter (felsic) and darker (mafic) layers.

What it means

Segregation of mineral phases (metamorphic differentiation).

Where to look for it

Gneiss

Photo examples

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Sources

Wikipedia: Foliation