Coal – What Is Coal and How Does It Form?

What is coal?   A natural dark brown to black graphitelike material,  an organic sedimentary rock formed from fossilized plants and consisting of amorphous carbon with various organic and some inorganic compounds: coal is a fossil fuel formed from plants that were buried millions of years ago. The high-temperature, high-pressure conditions transformed the plants physically and chemically, forming coal.

Whith the links you can access at more information and also know more about the techniques of coal mining.


Links:

http://geology.com/rocks/coal.shtml

https://en.wikipedia.org/wiki/Coal_mining

http://www.worldcoal.org/coal/what-is-coal/

http://www.mining-technology.com/features/feature-the-10-biggest-coal-mines-in-the-world/

http://test.stoa.usp.br/articles/0016/5403/coal_for_metallurgical_coke_production.pdf


 

 

 

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