Bituminous Coal
What is Bituminous Coal?
Bituminous coal is a relatively soft coal containing a tar-like substance called bitumen or asphalt. It is of higher quality than lignite coal but of lower quality than anthracite coal. It is typically black or brownish-black and often has visible bands or layers. Bituminous coal is a sedimentary rock formed from the compression of peat over millions of years. It is a significant source of energy and is used primarily as fuel in power plants to generate electricity and in the production of coke for the steel industry.
Optical Properties
- Refractive Index
- Not applicable, as it is opaque.
- Birefringence
- Not applicable, as it is opaque.
- Pleochroism
- Not applicable, as it is opaque.
- Optical Character
- Opaque
- Dispersion
- Not applicable, as it is opaque.
Bituminous Coal Market Value Calculator
Estimate the market value of Bituminous Coal using size, quality, and finish. This preview calculator is for quick context and is not a formal appraisal.
Bituminous Coal Localities Map
See where Bituminous Coal is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.
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Quick Facts
Physical Properties
- Color
- Black to brownish-black
- Hardness (Mohs)
- 2.5 to 3.0
- Density
- 1.2 to 1.4 g/cm³
- Streak
- Brown to black
Chemical Properties
- Chemical Formula
- Variable, but can be represented as a complex mixture of hydrocarbons.
- Elements
- Carbon, hydrogen, oxygen, nitrogen, sulfur, and various trace elements.
Also Known As
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