Heat, Pressure, Magma, and the crust from the Earth.
there is coal and there is pizza
they are formed by magma and lava
metamorphic rocks are formed in earths crust not on the surface
A type of Rock derived from pre-existing rocks that have been changed by HEAT AND PRESSURE.
they are classified by how they are classified
Erosion and weathering will cause rocks to become rounded.
Slate and marble are examples of metamorphic rocks. Other metamorphic rocks include gneiss, schist, and quartzite. All metamorphic rocks are formed from other rock types.
heat and pressure
Metamorphic rocks underground melt to become magma. When a volcano erupts, magma flows out of it. As the lava cools it hardens and becomes igneous rock.
How fast it weathers
They can be formed just about anywhere but are commonly found near the sites of volcanos or places volcanos were once active. They are formed by other rocks put under heat and pressure.
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