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Garnet Gneiss

In the Picture Gallery of Metamorphic Rocks

The minerals found in gneiss or schist are clues to the degree of pressure and heat involved in making the rock. Garnets are a sign of long, deep, hot burial.
Pressure-cooked on
Photo (c) Andrew Alden, licensed to About.com (fair use policy)

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Gallery Index: Metamorphic Rock Gallery

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