Mineralogy Database

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81 samples matching your criteria

  • Sample n°1777 : black and pink impregnations
    Minerals: VARISCITE MANGANESE OXIDES
    Year:
    Country: Congo (RDC)
  • Sample n°1779 : black minerals in micaceous pegmatite
    Minerals: MANGANESE OXIDES
    Year:
    Country: Congo (RDC)
  • Sample n°1886 : black coating in basaltic tuff
    Minerals: MANGANESE OXIDES
    Year:
    Country: Congo (RDC)
  • Sample n°1892 : black balls (1 cm)
    Minerals: MANGANESE OXIDES
    Year:
    Country: Congo (RDC)
  • Sample n°3362 : earthy black blocks
    Minerals: MANGANESE OXIDES
    Year: 1953
    Country: Congo (RDC)
  • Sample n°5717 : star-shaped black manganese oxide aggregates, blue katangite coating, in core section (sandstone)
    Minerals: KATANGITE (plancheite) MANGANESE OXIDES
    Year:
    Country: Congo (RDC)
  • Sample n°5988 : pink tabular crystals
    Minerals: SPODUMENE MANGANESE OXIDES
    Year:
    Country: Congo (RDC)
  • Sample n°6031 : black geodic conglomerate (50 cm)
    Minerals: MANGANESE OXIDES
    Year: 1968
    Country: Congo (RDC)
  • Sample n°6406 : black earthy oxides
    Minerals: MANGANESE OXIDES
    Year: 1958
    Country: Gabon
  • Sample n°6496 : black ore
    Minerals: MANGANESE OXIDES QUARTZ
    Year:
    Country: Congo (RDC)
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