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13 samples matching your criteria
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Sample n°11990 : large geode covered with crystalsMinerals: CELESTINEYear: 1968Country: Madagascar
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Sample n°11995 : sample with olive-yellow marthozite/metamarthozite, crust of dark green derriksite crystals, bright white metallic trogtalite, yellow geodic guilleminite nodules, powdery (altered) and acicular malachite, blue chalcomenite, metallic digenite with bluish lustreMinerals: DERRIKSITE MARTHOZITE TROGTALITE CHALCOMENITE DIGENITE GUILLEMINITE MALACHITEYear: 1969Country: Congo (RDC)
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Sample n°13958 : black metallic oxidised vein in siliceous rockMinerals: CHALCOSTIBITE MALACHITEYear: 1982Country: Morocco