Mineralogy Database

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81 samples matching your criteria

  • Sample n°11023 : massive, coarse crystalline
    Minerals: LITHIOPHORITE MANGANESE OXIDES
    Year: 1966
    Country: South Africa
  • Sample n°11361 : fibro-radial pyrolusite layers in black mass
    Minerals: PYROLUSITE MANGANESE OXIDES
    Year:
    Country: Burkina Faso
  • Sample n°11393 : small blocks and powder
    Minerals: MANGANESE OXIDES
    Year:
    Country: Congo (RDC)
  • Sample n°11500 : fragment with acicular plancheite and small chrysocolla nodules along the surface
    Minerals: CHRYSOCOLLA MALACHITE PLANCHEITE MANGANESE OXIDES
    Year: 1968
    Country: Congo (RDC)
  • Sample n°12079 : earthy block (10 cm)
    Minerals: MANGANESE OXIDES
    Year: 1968
    Country: France
  • Sample n°12379 : cavernous crust
    Minerals: CHALCOCITE CHALCOPYRITE MANGANESE OXIDES
    Year: 1969
    Country: Congo (RDC)
  • Sample n°12650 : black debris (1 cm)
    Minerals: MANGANESE OXIDES
    Year: 1971
    Country: Congo (RDC)
  • Sample n°12653 : rounded block (15 cm) with brown surface
    Minerals: BISMUTITE MANGANESE OXIDES
    Year: 1971
    Country: Congo (RDC)
  • Sample n°12666 : black scoriaceous block with brown surface
    Minerals: MANGANESE OXIDES
    Year: 1971
    Country: Congo (RDC)
  • Sample n°12706 : black scoriaceous block
    Minerals: MANGANESE OXIDES
    Year: 1972
    Country: Congo (RDC)
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