scheelite

noun

A variously colored mineral, CaWO4, found in igneous rocks and used as an ore of tungsten.

noun

Native calcium tungstate, a mineral of high specific gravity, occurring in tetragonal crystals which often show hemihedral modifications, also massive, of a white, yellowish, or brownish color, and vitreous to adamantine luster.

noun

Calcium tungstate, a mineral of a white or pale yellowish color and of the tetragonal system of crystallization.

noun

A mineral composed of calcium tungstate, with the chemical formula CaWO4; an important tungsten ore.

noun

a mineral used as an ore of tungsten