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111 samples matching your criteria
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Sample n°7982 : crystal (4 cm)Minerals: WOLFRAMITEYear:Country: Rwanda
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Sample n°7983 : red-brown earthy concentrate (1 cm)Minerals: WOLFRAMITEYear:Country: Congo (RDC)
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Sample n°8531 : black anhedral altered crystals in vein quartzMinerals: WOLFRAMITE QUARTZ SCORODITEYear:Country: Rwanda
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Sample n°8532 : altered black crystals with yellow alteration in vein quartz, with hydrokenoesmoreite (var. ferritungstite)Minerals: HYDROKENOELSMOREITE WOLFRAMITEYear:Country: Rwanda
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Sample n°8579 : tabular crystals (7 cm) in vein quartzMinerals: WOLFRAMITE QUARTZYear:Country: Congo (RDC)
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Sample n°8633 : crystals in altered pegmatiteMinerals: WOLFRAMITEYear:Country: Congo (RDC)
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Sample n°8991 : network of tabular crystals (10 cm) in vein quartzMinerals: WOLFRAMITEYear: 1961Country: Congo (RDC)
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Sample n°9083 : tourmaline needles and tabular wolframite crystals in geodic quartzMinerals: WOLFRAMITE TOURMALINEYear: 1962Country: Rwanda
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Sample n°9129 : bright black tabular crystals (3 cm)Minerals: WOLFRAMITEYear: 1962Country: Rwanda
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Sample n°10031 : black veins in vein quartzMinerals: WOLFRAMITEYear: 1963Country: France