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36 samples matching your criteria
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Sample n°977 : nice blue to red blockMinerals: SPHALERITE BORNITE CHALCOCITE MALACHITEYear:Country: Congo (RDC)
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Sample n°978 : small fragments, yellow interior, blue-red exterior, with polished sectionMinerals: BORNITE CHALCOPYRITE GOETHITE PYRITE CHALCOCITE MALACHITE TENNANTITEYear: 1936Country: Congo (RDC)
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Sample n°979 : blue to black, striatedMinerals: CHALCOPYRITE SPHALERITE GALENA GOETHITE PYRITE RENIERITE TENNANTITE TETRAHEDRITE BORNITE CHALCOCITEYear: 1931Country: Congo (RDC)
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Sample n°980 : small blue metallic fragments, with polished sectionMinerals: CHALCOPYRITE GOETHITE TETRADYMITE GALENA BORNITE CHALCOCITE RENIERITE SILVER SPHALERITE LINNAEITE TENNANTITEYear: 1931Country: Congo (RDC)
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Sample n°982 : massive block, with polished sectionMinerals: CUPRITE SILVER COPPER TENORITEYear: 1936Country: Congo (RDC)
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Sample n°14294 : concretionary coatingsMinerals: CHRYSOCOLLAYear:Country: Congo (RDC)