Scheelite rock
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 Scheelite is associated with wolframite in placer deposits and forms in pegmatites, hydrothermal veins, and areas of contact metamorphism. Other associated minerals include fluorite, muscovite, dolomite and molybdenite. Its type locality is the Bisperg iron mine in Säter, Dalarna, Sweden. Officially recognized in 1821, scheelite was named after Swedish chemist Carl Wilhelm Scheele, the discoverer of tungsten. Crystals exceeding kilograms (1 pound) have been found in Brazil:
Size: 5293px × 3543px
Location: Rio Grande do Norte, Brazil
Photo credit: © ricardo junqueira / Alamy / Afripics
License: Royalty Free
Model Released: Yes
Keywords: background, calcium, chemical, color, crystal, gemstone, geology, hand, horizontal, human, image, mineral, neutral, outdoors, photography, rock, rockhounds, scheelite, science, tungstate, tungsten
