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* [[Lignite]] - also known as "brown coal", is the dirtiest burning, and is mainly used in power generation.  The top two locations for lignite mining are [[Germany]] and [[Russia]].   
 
* [[Lignite]] - also known as "brown coal", is the dirtiest burning, and is mainly used in power generation.  The top two locations for lignite mining are [[Germany]] and [[Russia]].   
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[[Graphite]], used in [[pencil]]s and as an electrical conductor, is technically a type of coal of an even higher grade than anthracite, but is not used as a fuel as it is hard to ignite.
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[[Graphite]], used in [[pencil]]s and as an electrical conductor, is not a type of coal, is if formed during the metamorphism of carbon rich sediments, such as coal streams, it is not used commercially as a fuel since it is hard to ignite.
    
== Origins ==
 
== Origins ==
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