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7 samples matching your criteria
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Sample n°10119 : massive brown oreMinerals: SIDERITEYear: 1963Country: Mauritania
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Sample n°10120 : brown siderite crystals, fibrous massMinerals: SIDERITE ASBESTOSYear: 1963Country: Mauritania
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Sample n°13383 : banded iron formationMinerals: HEMATITEYear: 1976Country: Mauritania
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Sample n°19429 : banded iron formationMinerals: HEMATITEYear: 2010Country: Mauritania
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Sample n°20115 : reddish crystalsMinerals: QUARTZYear:Country: Mauritania
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Sample n°20116 : fragmentsMinerals: SODALITEYear: 2023Country: Mauritania
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Sample n°20438 : banded iron formation, with layering accentuated through weatheringMinerals: HEMATITEYear:Country: Mauritania