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

No Description

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…