40d:Bituminous coal

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Bituminous coal
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Wikipedia article

This article is about an older version of DF.

One of the two mineral sources of fuel, bituminous coal is found in veins in sedimentary layers. When processed at a smelter or magma smelter, one unit of bituminous coal produces 3 units of coke. If done at a regular smelter, this processing requires one pre-existing unit of fuel (either charcoal or coke), leaving a net production of 2 fuel.

Bituminous coal is flammable. (It should not be necessary to add that it is not a fire-safe material.)

Bituminous coal is not the same as "refined coal", "coal fuel", or "coal", though it is directly related.

See also