Rock group | Metamorphic and igneous |
Metamorphism type | Regional |
Protolith | Gneiss |
Migmatite in Hand Sample
Migmatite from Unionville, VA
San Carlos migmatite
Migmatite exposed at Sea Point, South Africa
It’s a small outcrop, not a hand sample, but here’s some migmatite exposed on section A of the Billy Goat Trail at Great Falls National Park
Migmatite in Thin Section
Migmatite, plane polars
Migmatite, crossed polars

Migmatite, plane polars
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Migmatite, crossed polars
Migmatite in cross polarized light. Magnification: 40x Click here for plane polars: https://youtu.be/5EeQKEAMSpo Click here to explore this slide in plane po…