Cannel Coal is a dull black coal which breaks with a conchoidal fracture and does not soil the fingers when handled. In some respects it resembles jet. It is easily cut, and will take a high polish. It contains a large proportion of volatile constituents making it suitable for gas manufacture, and it burns with a bright white flame. A fine-textured, highly volatile bituminous coal distinguished by a greasy luster and blocky, conchoidal fracture; burns with a steady luminous flame. Also known as cannelite.
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