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Mylonite

Pictures of Metamorphic Rock Types

Mylonite forms along fault surfaces by crushing and stretching of rocks under such heat and pressure that the minerals deform in a plastic way (mylonitization).

Photo by Jonathan Matti, US Geological Survey

For more photos see the Metamorphic Rocks Gallery.

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Gallery Index: Metamorphic Rock Types

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Reader Submissions: My Metamorphic Rock

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About Metamorphic Rocks Contact Metamorphism Porphyroblast Gallery

Collecting Metamorphic Rocks

About Rocks & Rock Collecting Where to Look for Rocks and Minerals Mineral Collecting at Contact Zones

Andrew Alden
Geology Guide

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