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Amphibolite

What is Amphibolite?

Amphibolite is a non-foliated metamorphic rock that forms through recrystallization under conditions of high viscosity and directed pressure. It is composed primarily of amphibole and plagioclase, usually with very little quartz.

Amphibolite: The specimen shown is about two inches (five centimeters) across.

The rock photos above were taken by Ann Bryant and are copyright by Geology.com.

Metamorphic Rocks

Amphibolite

Gneiss

Hornfels

Marble

Phyllite

Quartzite

Schist

Slate

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