1. An inorganic species or substance occurring in nature, having a definite chemical composition and usually a distinct crystalline form. Rocks, except certain glassy igneous forms, are either simple minerals or aggregates of minerals.
2. A mine.
Origin: F. Mineral, LL. Minerale, fr. Minera mine. See Mine.
<chemistry> Mineral acids, a salt of a mineral acid. Mineral tallow, a familiar name for hatchettite, from its fatty or spermaceti-like appearance. Mineral water. See Water. Mineral wax. See Ozocerite. Mineral wool, a fibrous wool-like material, made by blowing a powerful jet of air or steam through melted slag. It is a poor conductor of heat.
(01 Mar 1998)
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