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291 samples matching your criteria
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Sample n°12493.22 : crystalsMinerals: COLUMBITEYear: 1970Country: Rwanda
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Sample n°12493.41 : crystals and crystal fragmentsMinerals: WODGINITEYear: 1970Country: Rwanda
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Sample n°12493.46 : crystalsMinerals: WODGINITEYear: 1970Country: Rwanda
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Sample n°12493.51 : fragmentsMinerals: TANTALITE-(Mn)Year: 1970Country: Rwanda
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Sample n°12493.33 : prismatic crystalMinerals: COLUMBITEYear: 1970Country: Rwanda
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Sample n°12493.50 : fragmentMinerals: TANTALITEYear: 1970Country: Rwanda
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Sample n°12493.49 : fragmentMinerals: TANTALITEYear: 1970Country: Rwanda
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Sample n°12493.56 : crystal in matrixMinerals: TANTALITE-(Mn)Year: 1970Country: Rwanda
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Sample n°12493.54 : well-developed crystalMinerals: THOREAULITEYear: 1970Country: Rwanda
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Sample n°12493.99 : fragmentMinerals: THOREAULITEYear: 1970Country: Rwanda