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Name: |
scheelite |
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Class: |
Tungstates/Molybdates |
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Chemistry: |
CaWO4 |
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Color(s): |
colorless, white, yellowish, orange-brown |
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Hardness: |
4.5-5 |
SpecGrav: |
5.9-6.1 |
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Fracture: |
conchoidal |
Cleavage: |
difficult to distinguish |
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Crystal: |
tetragonal; bipyramidal, less often tabular |
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Envronment: |
in pegmatites, pneumatolytic veins, hydrothermal veins |
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Association: |
fluorite, cassiterite, wolframite, quartz |
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Locals: |
Germany / China / CA., USA / Austria / Namibia/ Brazil/ Australia |
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Misc: |
named for a Swedish Chemist, K. W. Scheele (1742-1786). |
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Photos |
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1.) Yizhang Co. Hunan Prov. China |
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