v0.31:Bituminous coal

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Bituminous coal
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Uses
Location

Properties
Fire-safe Not magma-safe

Wikipedia article

This article is about an older version of DF.

Bituminous coal is found in veins in sedimentary layers and is one of the two mineral sources of fuel. 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, and obviously is not a fire-safe material - if exposed to fire or magma, an item made of bituminous coal will burn for the better part of a year before wearing away. Exposure to water (including rain) will extinguish it, unless it happens to be stored in a bin.

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

See also