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.
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.
2.2
Actually anthracite is a variety of coal.
Anthracite coal is harder than Lignite.
Anthracite coal is already a metamorphic rock.
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.
2.2
Anthracite coal is used for steel making.
No. Anthracite coal is a metamorphic rock.
Actually anthracite is a variety of coal.
Anthracite Coal is a metamorphic rock.
Anthracite coal is harder than Lignite.
Anthracite is a type of coal.
Anthracite is a form of coal, coal is primary carbon, and carbon is black.
Anthracite coal is already a metamorphic rock.
The protolith of schist is phyllite. The protolith of anthracite is bituminous coal.
There are 13,000 btu/lb anthracite coal.