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Wolframite
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FAMILY:
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Tungstates
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COLOR:
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Colorless, Yellow, Red-Brown, Light Blue, Pink-Red, Violet, Light Green
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MOH'S HARDNESS:
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5 - 5½
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DENSITY:
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7.1 - 7.6
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TRANSPARENCY:
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Opaque
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OCCURRENCE:
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Common
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ORIGIN:
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Brazil, Afghanistan, Burma, China, Japan, Madagascar, Mexico, Namibia, Nigeria, Pakistan, Russia, Zimbabwe, Sri Lanka
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