The chemical composition of scheelite is Ca[WO 4 ], and the crystal belongs to the tetragonal tungstate mineral. The crystal is a tetragonal double cone with an octahedron, and the aggregate is mostly granular and dense. Often has colorless or white, sometimes with gray, yellow, brown, green and other colors, white streak, vitreous luster to gloss adamantyl, fracture oil sheen, cleavage medium brittle. Mohs hardness of 4.5-5, the ratio is significant, up to 6.1.
Identification characteristics: light blue fluorescence under ultraviolet irradiation, which is distinguished from quartz by grayish white, medium cleavage, small hardness and high density.
The scheelite is mainly produced in the skarn of the contact zone between granite and limestone. China's Hunan Yaogangxian is a world famous scheelite producing area. World famous places include Yamaguchi in southern Korea, Saxony in Germany, Cornwall in England, New South Wales in Australia, northern Bolivia and Nevada in the United States. The scheelite is an important raw material for tungsten smelting.
Identification characteristics: light blue fluorescence under ultraviolet irradiation, which is distinguished from quartz by grayish white, medium cleavage, small hardness and high density.
The scheelite is mainly produced in the skarn of the contact zone between granite and limestone. China's Hunan Yaogangxian is a world famous scheelite producing area. World famous places include Yamaguchi in southern Korea, Saxony in Germany, Cornwall in England, New South Wales in Australia, northern Bolivia and Nevada in the United States. The scheelite is an important raw material for tungsten smelting.
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