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16 samples matching your criteria
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Sample n°13567 : sphere composed of pink prismatic crystals and clear hexagonal crystals (2 cm)Minerals: ARAGONITEYear: 1977Country: Spain
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Sample n°13568 : black botryoidal blocks (7-10 cm)Minerals: PYROLUSITEYear: 1977Country: Ukraine
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Sample n°13569 : green coatings on black rock (7 cm)Minerals: BERAUNITEYear: 1977Country: Belgium
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Sample n°13570 : purplish black scoriaceous block (6 cm)Minerals: ARSENIC ARSENOLITEYear: 1977Country: France
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Sample n°13571 : small black metallic crystals in geodeMinerals: TETRAHEDRITEYear: 1977Country: France
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Sample n°13561 : substrate with cover of coarse micaMinerals: BETAFITEYear:Country: Norway