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45 samples matching your criteria
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Sample n°18382 : blue groundMinerals: unspecifiedYear: 2017Country: Congo (RDC)
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Sample n°18383 : dolomite with aligned elongated cavities formed by dissolution of sullfidesMinerals: DOLOMITEYear: 2017Country: Congo (RDC)
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Sample n°18690 : purple patches in chromiferous serpentiniteMinerals: STICHTITEYear:Country: Morocco
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Sample n°19315 : dark blue fragments, including hexagonal forms, var. sapphireMinerals: CORUNDUMYear: 2020Country: Congo (RDC)
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Sample n°19323 : concentrateMinerals: HERCYNITEYear: 2020Country: Congo (RDC)