metamorphic rock

DEFINITIONS OF: metamorphic rock

1

n rock altered by pressure and heat

Types:
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amphibolite
a metamorphic rock composed chiefly of amphibole and plagioclase
marlite, marlstone
metamorphic rock with approximately the same composition as marl
hornfels, hornstone
a fine-grained metamorphic rock formed by the action of heat on clay rocks
gneiss
a laminated metamorphic rock similar to granite
schist
any metamorphic rock that can be split into thin layers
Type of:
rock, stone
material consisting of the aggregate of minerals like those making up the Earth's crust
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