Mineralogy Database

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20 samples matching your criteria

  • Sample n°1061 : brown rock with pale blue veins and dark blue needles
    Minerals: HEMATITE
    Year: 1910
    Country: Congo (RDC)
  • Sample n°1062 : geodic rock with white quartz with dioptase spots, green crust (volborthite) and bright black needles (vesignieite)
    Minerals: CHALCEDONY (quartz) QUARTZ VESIGNIEITE DIOPTASE VOLBORTHITE
    Year: 1910
    Country: Congo (RDC)
  • Sample n°1063 : geode of white and blue quartz, malachite fibres, blue veins (shattuckite), olive-green crust (volborthite)
    Minerals: MALACHITE QUARTZ SHATTUCKITE VOLBORTHITE
    Year: 1910
    Country: Congo (RDC)
  • Sample n°1064 : rock with black silex, grey geodes (chalcedony), layers of blue fibro-radial plancheite
    Minerals: CHALCEDONY (quartz) PLANCHEITE QUARTZ
    Year: 1910
    Country: Congo (RDC)
  • Sample n°4544 : massive blue fibro-radial block with olive-green volborthite veins
    Minerals: SHATTUCKITE VOLBORTHITE
    Year:
    Country: Congo (RDC)
  • Sample n°4547 : crust of black crystals (1 cm) on block of chalcedony
    Minerals: LIBETHENITE CHALCEDONY (quartz)
    Year:
    Country: Congo (RDC)
  • Sample n°4549 : geode with dark green crystals (1 cm)
    Minerals: LIBETHENITE
    Year:
    Country: Congo (RDC)
  • Sample n°10773 : pale blue powdery block with olive-green coating
    Minerals: KATANGITE (plancheite) PLANCHEITE
    Year:
    Country: Congo (RDC)
  • Sample n°1065 : greenish coating
    Minerals: OPAL
    Year: 1936
    Country: Congo (RDC)
  • Sample n°19645 : coarse-fibrous shattuckite, olive-green volborthite, quartz coating
    Minerals: SHATTUCKITE VOLBORTHITE QUARTZ
    Year:
    Country: Congo (RDC)
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