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13 samples matching your criteria
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Sample n°7210 : grains and small platesMinerals: GOLDYear: 1959Country: Congo (RDC)
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Sample n°7211 : yellow crust on soft white rockMinerals: SULPHURYear: 1912Country: Congo (RDC)
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Sample n°4211 : diamond-bearing concentrateMinerals: DIAMOND QUARTZ GARNETYear: 1954Country: Congo (RDC)