Scheelite

n. calcium tungstate, yellowish-white mineral which forms tetragonal crystals (Geology)

Scheelite is a calcium tungstate mineral with the chemical formula CaWO4. It is an important ore of tungsten. Well-formed crystals are sought by collectors and are occasionally fashioned into gemstones when suitably free of flaws. Scheelite has been synthesized via the Czochralski process; the material produced may be used to imitate diamond, as a scintillator, or as a solid state lasing medium.
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Noun
1. a mineral used as an ore of tungsten
(hypernym) mineral
(substance-meronym) tungsten, wolfram, W, atomic number 74

n. scheelite, calcium tungstate, yellowish-white mineral which forms tetragonal crystals (Geology)

n. scheelite, calcium tungstate, yellowish-white mineral which forms tetragonal crystals (Geology)