Mineralogy Database

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2 samples matching your criteria

  • Sample n°20346 : massive, with scattered thin managanite coatings
    Minerals: CRYPTOMELANE MANGANITE
    Year: 2017
    Country: Congo (RDC)
  • Sample n°20347 : botryoidal crust
    Minerals: CRYPTOMELANE
    Year: 2017
    Country: Congo (RDC)
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