Metamorphic rock

A rock derived from pre-existing rocks by mineralogical, chemical, and/or structural changes, essentially in the solid state, in response to marked changes in temperature, pressure, shearing stress, and chemical environment, generally at depth in the earth's crust.
Amphibolite (1 items)
Gneiss (5 items)
Phyllite (2 items)
Schist (4 items)
Serpentinite (4 items)
Skarn (4 items)
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