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2 samples matching your criteria
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Sample n°736 : sawn block with black metallic veinsMinerals: CHALCOCITE STROMEYERITEYear: 1927Country: Congo (RDC)
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Sample n°754 : green and colourless clear crystals (quartz), pale green powder (katangite)Minerals: QUARTZ KATANGITE (plancheite)Year:Country: Congo (RDC)