Mineralogy Database

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250 samples matching your criteria

  • Sample n°4728 : quartz geode with dioptase, in rock with katangite impregnation
    Minerals: DIOPTASE QUARTZ KATANGITE (plancheite)
    Year: 1954
    Country: Congo (Congo-Brazzaville)
  • Sample n°6507 : crystalline material on vein quartz
    Minerals: PYRITE QUARTZ SULPHUR
    Year:
    Country: Congo (Congo-Brazzaville)
  • Sample n°7201 : group of large crystals (1 cm)
    Minerals: DIOPTASE
    Year: 1959
    Country: Congo (Congo-Brazzaville)
  • Sample n°7202 : blue plancheite mass, damaged dioptase crystals
    Minerals: PLANCHEITE DIOPTASE
    Year: 1959
    Country: Congo (Congo-Brazzaville)
  • Sample n°8990 : stacked stalactites, partly with nodular surface (35 cm length)
    Minerals: MALACHITE
    Year: 1961
    Country: Congo (Congo-Brazzaville)
  • Sample n°10109 : dioptase crystals (1 cm) on rock impregnated with katangite
    Minerals: DIOPTASE KATANGITE (plancheite)
    Year: 1964
    Country: Congo (Congo-Brazzaville)
  • Sample n°10110 : mixed crystalline coating, with apple-green dioptase and dark green fornacite
    Minerals: DIOPTASE FORNACITE PLANCHEITE
    Year: 1964
    Country: Congo (Congo-Brazzaville)
  • Sample n°10111 : small dark green fornacite crystals, olive-coloured duftite, in copper-rich substrate
    Minerals: DUFTITE FORNACITE CHALCOCITE PLANCHEITE
    Year: 1964
    Country: Congo (Congo-Brazzaville)
  • Sample n°10112 : geode with well-developed crystals (1 cm)
    Minerals: DIOPTASE
    Year: 1964
    Country: Congo (Congo-Brazzaville)
  • Sample n°10113 : dioptase veins and geode, covering calcite coatings
    Minerals: CALCITE DIOPTASE
    Year: 1964
    Country: Congo (Congo-Brazzaville)
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