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Metamorphic rocks formed when the minerals of which igneous or sedimentary rocks were formed underwent chemical changes from weathering.
"Metamorphic" means "changed" rock. Metamorphic rocks exchange material with the atmosphere and with neighboring rocks.
Metamorphism comes in two different kinds:
Go to a listing of Rocks by mineral group
Metamorphic rocks formed when the minerals of which igneous or sedimentary rocks were formed underwent chemical changes from weathering.
"Metamorphic" means "changed" rock. Metamorphic rocks exchange material with the atmosphere and with neighboring rocks.
Metamorphism comes in two different kinds:
Go to a listing of Rocks by mineral group
Metamorphic rocks formed when the minerals of which igneous or sedimentary rocks were formed underwent chemical changes from weathering.
"Metamorphic" means "changed" rock. Metamorphic rocks exchange material with the atmosphere and with neighboring rocks.
Go to a listing of Rocks by mineral group
