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82 samples matching your criteria
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Sample n°11570 : blocks (1-10 cm) composed of bundles of brown prismatic crystalsMinerals: GYPSUMYear: 1968Country: Belgium
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Sample n°11734 : purplish black fibrous block, var. crocidoliteMinerals: RIEBECKITEYear: 1968Country: South Africa
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Sample n°11992 : white massive materialMinerals: CHLORITE TENORITEYear:Country: Congo (RDC)
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Sample n°12185 : brown octahedral crystals (1-3 cm)Minerals: ZIRCONYear: 1985Country: Congo (RDC)
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Sample n°12975 : brown nodules with black surface (1 cm)Minerals: KOLWEZITE DOLOMITEYear:Country: Congo (RDC)
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Sample n°12976 : aggregates of green needles in geodeMinerals: MALACHITE CALCITEYear:Country: Congo (RDC)
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Sample n°12977 : radial aggregates and tabular crystals as crust on pink dolomiteMinerals: MALACHITE DOLOMITEYear: 1972Country: Congo (RDC)
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Sample n°12979 : earthy and nodularMinerals: HETEROGENITEYear:Country: Congo (RDC)
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Sample n°12980 : soft green crust, covered by heterogeniteMinerals: GLAUKOSPHAERITE HETEROGENITE MALACHITEYear: 1974Country: Congo (RDC)
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Sample n°13222 : sample with well-developed vandenbrandeite crystals, guilleminite crystals and powder, sengierite as olive-green powder, orange kasolite nodules, bottle-green malachite needles and crust, rust-coloured mica platesMinerals: GUILLEMINITE SENGIERITE VANDENBRANDEITE DIGENITE KASOLITE MALACHITE MICAYear: 1974Country: Congo (RDC)