It is composed primarily of the mineral calcite caco 3 and usually contains other minerals such as clay minerals micas quartz pyrite iron oxides and graphite.
Metamorphic picture of marble rock.
Slate is another common metamorphic rock that forms from shale.
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Non foliated metamorphic rocks such as hornfels marble quartzite and novaculite do not have a layered or banded appearance.
Marble is made by regional metamorphism of limestone or dolomite rock causing their microscopic grains to combine into larger crystals.
Foliated metamorphic rocks such as gneiss phyllite schist and slate have a layered or banded appearance that is produced by exposure to heat and directed pressure.
Limestone a sedimentary rock will change into the metamorphic rock marble if the right conditions are met.
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Pictures and brief descriptions of some common types.