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Ferberite
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FAMILY:
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Wolframite
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COLOR:
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Black, Greenish Or Brownish Tint At Times
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MOH'S HARDNESS:
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4 - 4½
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DENSITY:
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7.58
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TRANSPARENCY:
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Opaque
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OCCURRENCE:
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Very Common
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ORIGIN:
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Norway, Russia, Sweden, Brazil, Us
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Your search for Ferberite resulted in 1 Stamps
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