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Anthracite coal is a metamorphic coal that has a higher luster than any sedimentary coals. It also has the highest carbon content. Otherwise it is very similar to sedimentary coal.

Diamond is commonly thought to be the metamorphism of coal but this is largely untrue as the immense majority (near 100%) of diamonds have nothing to do with coal.

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Related Questions

Is coal a sedimentary or metamorphic?

coal is metamorphic


Is coal sedimentary igneous or metamorphic?

Bituminous coal is sedimentary! Bituminous coal is sedimentary!


Is bituminous coal igneous sedimentary or metamorphic?

Bituminous coal is sedimentary! Bituminous coal is sedimentary!


What type of coal is a sedimentary rock?

All types of coal are sedimentary, except anthracite which is metamorphic.


Is coal metamorphic?

Most coal is sedimentary, but anthracite is bituminous coal that has undergone metamorphosis to become a metamorphic rock.


Is anthracite coal a sedimentary rock?

No. Anthracite coal is a metamorphic rock.


Is coal sedimentary?

Coal is a sedimentary rock. However, harder forms of coal, because of exposure to elevated temperature and pressure, are metamorphic rock.


What kind of coal is sedimentary rock?

Coal, other than the metamorphic form called anthracite, is an organic sedimentary rock.


Is coal a sedimentary rocks?

Coal is a sedimentary rock. However, harder forms of coal, because of exposure to elevated temperature and pressure, are metamorphic rock.


Is Anthracite coal igneous metamorphic or sedimentary?

Anthracite coal is a type of metamorphic rock. It forms from the transformation of bituminous coal under increased temperature and pressure over time.


Is anthracite an igneous metamorphic or sedimentary?

Anthracite is a metamorphic rock. Anthracite is formed when an organic sedimentary rock - coal - is compressed and heated in the ground.


Is coal an igneous rock sedimentary rock or metamorphic rock?

Bituminous coal is consided a sedimentary rock. Anthracite coal is bituminous coal that has been metamorphosed by great pressure and heat and is considered a metamorphic rock.