0
Because it is a rock, not a mineral, the Mohs value will vary significantly from sample to sample. An average range would be between 3.0 and 3.8.
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Is coal hard?
Anthracite coal is harder than bituminous coal. Anthracite coal has a relative hardness of 1.3 to 1.4. Bituminous coal has a hardness of less than one.
What is hard coal?
2.2
How does metamorphism change coal into anthracite?
Actually anthracite is a variety of coal.
What is harder lignite or anthracite coal?
Anthracite coal is harder than Lignite.
What metamorphic rock does anthracite coal turn in to?
Anthracite coal is already a metamorphic rock.
Is coal hard?
Anthracite coal is harder than bituminous coal. Anthracite coal has a relative hardness of 1.3 to 1.4. Bituminous coal has a hardness of less than one.
What is hard coal?
2.2
What is anthracite coal used for?
Anthracite coal is used for steel making.
Is anthracite coal a sedimentary rock?
No. Anthracite coal is a metamorphic rock.
How does metamorphism change coal into anthracite?
Actually anthracite is a variety of coal.
Is Anthracite coal igneous metamorphic or sedimentary?
Anthracite Coal is a metamorphic rock.
What is harder lignite or anthracite coal?
Anthracite coal is harder than Lignite.
What can anthracite be classified as?
Anthracite is a type of coal.
Why is anthracite black?
Anthracite is a form of coal, coal is primary carbon, and carbon is black.
What metamorphic rock does anthracite coal turn in to?
Anthracite coal is already a metamorphic rock.
What are the protoliths of Schist and Anthracite coal?
The protolith of schist is phyllite. The protolith of anthracite is bituminous coal.
How many British thermal units are in a pound of anthracite coal?
There are 13,000 btu/lb anthracite coal.
