Mineralogy Database

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172 samples matching your criteria

  • Sample n°431 : massive block and crystals (3 mm)
    Minerals: DIOPTASE QUARTZ
    Year:
    Country: Congo (Congo-Brazzaville)
  • Sample n°505 : rhombohedrons and green coatings
    Minerals: CALCITE DIOPTASE
    Year: 1924
    Country: Congo (RDC)
  • Sample n°661 : shiny black core (tenorite), surrounded by Cu-silicate crusts
    Minerals: TENORITE CHRYSOCOLLA DIOPTASE KATANGITE (plancheite) PLANCHEITE
    Year: 1926
    Country: Congo (RDC)
  • Sample n°745 : band of green broken crystals in siliceous rock
    Minerals: DIOPTASE KATANGITE (plancheite) QUARTZ
    Year:
    Country: Congo (RDC)
  • Sample n°750 : green crystals (dioptase), bottle-green crystals (rosasite), brown rosettes (willemite)
    Minerals: DIOPTASE CERUSSITE ROSASITE WILLEMITE
    Year:
    Country: Congo (RDC)
  • Sample n°996 : ferruginous substrate with veins of copper minerals and quartz
    Minerals: DIOPTASE HEMATITE QUARTZ CHALCEDONY (quartz) CHRYSOCOLLA GOETHITE
    Year: 1937
    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°1120 : small crystals in geodic block
    Minerals: DIOPTASE
    Year: 1933
    Country: Congo (Congo-Brazzaville)
  • Sample n°1134 : coalesced blue nodules forming a crust
    Minerals: PLANCHEITE DIOPTASE
    Year: 1946
    Country: Congo (RDC)
  • Sample n°1139 : broken crystals
    Minerals: DIOPTASE
    Year: 1946
    Country: Congo (RDC)
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