Mineralogy Database

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82 samples matching your criteria

  • Sample n°148 : malachite coatings, dendritic manganese oxide aggregates
    Minerals: MALACHITE MANGANESE OXIDES
    Year: 1901
    Country: Congo (RDC)
  • Sample n°207 : black encrustations
    Minerals: MANGANESE OXIDES
    Year: 1901
    Country: Congo (RDC)
  • Sample n°1218 : glassy lustre, concretionary
    Minerals: CHRYSOCOLLA MANGANESE OXIDES
    Year: 1942
    Country: Congo (RDC)
  • Sample n°1226 : small fragment of scoriaceous material
    Minerals: MANGANESE OXIDES GOETHITE
    Year: 1942
    Country: Congo (RDC)
  • Sample n°1502 : black scoriaceous rock
    Minerals: MANGANESE OXIDES
    Year: 1945
    Country: Congo (RDC)
  • Sample n°1664 : ferruginous substrate with black coatings
    Minerals: GOETHITE MANGANESE OXIDES
    Year:
    Country: Congo (RDC)
  • Sample n°1692 : black reniform block
    Minerals: MANGANESE OXIDES
    Year:
    Country: Congo (RDC)
  • Sample n°1764 : contact between pegmatite and manganese oxide occurrence
    Minerals: MANGANESE OXIDES MUSCOVITE
    Year:
    Country: Congo (RDC)
  • Sample n°1774 : grey block, strongly altered
    Minerals: MANGANESE OXIDES
    Year:
    Country: Congo (RDC)
  • Sample n°1776 : grey powdery block
    Minerals: MANGANESE OXIDES
    Year:
    Country: Congo (RDC)
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