Mineralogy Database

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87 samples matching your criteria

  • Sample n°1771 : concretionary
    Minerals: PYROLUSITE
    Year:
    Country: Congo (RDC)
  • Sample n°1772 : concretionary
    Minerals: PYROLUSITE MANGANITE
    Year:
    Country: Congo (RDC)
  • Sample n°2163 : massive
    Minerals: PYROLUSITE
    Year:
    Country: Congo (RDC)
  • Sample n°2164 : concretionary massive ore
    Minerals: PYROLUSITE
    Year:
    Country: Congo (RDC)
  • Sample n°2230 : massive
    Minerals: PYROLUSITE
    Year: 1945
    Country: Congo (RDC)
  • Sample n°3489 : bluish black block
    Minerals: PYROLUSITE
    Year:
    Country: Congo (RDC)
  • Sample n°3544 : rounded fragments
    Minerals: PYROLUSITE
    Year: 1953
    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°4613 : massive block with small malachite crystals in geode
    Minerals: MANGANITE PYROLUSITE
    Year:
    Country: Unknown
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