Mineralogy Database

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91 samples matching your criteria

  • Sample n°4325 : large fibrous crystals
    Minerals: MANGANITE
    Year: 1954
    Country: Congo (RDC)
  • Sample n°4326 : nodules
    Minerals: PYROLUSITE
    Year: 1954
    Country: Congo (RDC)
  • Sample n°4327 : nodules (two polished sections)
    Minerals: PYROLUSITE
    Year:
    Country: Congo (RDC)
  • Sample n°4676 : white clay on Mn oxides
    Minerals: KAOLINITE PYROLUSITE
    Year: 1954
    Country: Congo (RDC)
  • Sample n°6587 : purple coatings and aggregates on manganese ore substrate
    Minerals: VARISCITE
    Year:
    Country: Congo (RDC)
  • Sample n°7042 : massive
    Minerals: MANGANESE OXIDES
    Year:
    Country: Congo (RDC)
  • Sample n°10723 : crystals with metallic lustre on manganese oxide substrate
    Minerals: MANGANITE
    Year:
    Country: Congo (RDC)
  • Sample n°10724 : massive ore
    Minerals: PYROLUSITE
    Year: 1965
    Country: Congo (RDC)
  • Sample n°10725 : stalactitic aggregates
    Minerals: CRYPTOMELANE MANGANITE
    Year: 1965
    Country: Congo (RDC)
  • Sample n°10726 : velvety nodules
    Minerals: CRYPTOMELANE
    Year: 1965
    Country: Congo (RDC)
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