Mineralogy Database

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2 samples matching your criteria

  • Sample n°1892 : black balls (1 cm)
    Minerals: MANGANESE OXIDES
    Year:
    Country: Congo (RDC)
  • Sample n°1939 : small crystals in geode in blue schist
    Minerals: GYPSUM
    Year:
    Country: Congo (RDC)
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