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3 samples matching your criteria
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Sample n°2151 : black specular blockMinerals: HEMATITE QUARTZYear:Country: Congo (RDC)
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Sample n°2152 : black specular materialMinerals: HEMATITEYear:Country: Congo (RDC)
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Sample n°2153 : specular veins in quartzMinerals: QUARTZ HEMATITEYear:Country: Congo (RDC)