Mineralogy Database

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7938 samples matching your criteria

  • Sample n°10858 : black crystals (2 mm) and acicular rosettes in black phyllite
    Minerals: KYANITE STAUROLITE
    Year: 1930
    Country: Congo (RDC)
  • Sample n°10860 : massive mixed sulfides
    Minerals: ARSENOPYRITE PYRITE
    Year: 1930
    Country: Congo (RDC)
  • Sample n°10861 : vitreous block (8 cm)
    Minerals: QUARTZ
    Year: 1930
    Country: Congo (RDC)
  • Sample n°10863 : bright black coating on vein quartz
    Minerals: GRAPHITE QUARTZ
    Year: 1930
    Country: Congo (RDC)
  • Sample n°10867 : biotitite
    Minerals: BIOTITE
    Year: 1958
    Country: Congo (RDC)
  • Sample n°10868 : blank and red, massive, impregnation of siliceous rock
    Minerals: HEMATITE
    Year: 1958
    Country: Congo (RDC)
  • Sample n°10869 : sample with olive-green metatorbernite crystals, olive-coloured dememaekerite crystals in geode, royal blue chalcomenite crystals, bluish metallic chalcocite, honey-coloured wulfenite, brown tenorite crystals
    Minerals: CHALCOMENITE DEMESMAEKERITE METATORBERNITE CHALCOCITE MALACHITE TENORITE WULFENITE
    Year: 1966
    Country: Congo (RDC)
  • Sample n°10870 : sample with demesmaekerite as olive and bottle-green crystals, yellow guilleminite crystals, blue chalcomenite, honey-coloured wulfenite, metallic chalcocite
    Minerals: DEMESMAEKERITE GUILLEMINITE CHALCOCITE CHALCOMENITE MALACHITE WULFENITE
    Year: 1966
    Country: Congo (RDC)
  • Sample n°10871 : sample with demesmaekerite as olive to bottle-green crystals and as crust of yellow crystals, pale and dark green derriksite crystals, blue chalcomenite, bluish metallic chalcocite, dark green malachite crystals, honey-coloured wulfenite
    Minerals: DEMESMAEKERITE DERRIKSITE CHALCOCITE CHALCOMENITE MALACHITE WULFENITE
    Year: 1966
    Country: Congo (RDC)
  • Sample n°10872 : sample with demesmaekerite as crystals and as massive material, blue chalcomenite, fibrous and massive malachite and bluish green malachite crystals, honey-coloured wulfenite, blue metallic chalcocite
    Minerals: DEMESMAEKERITE CHALCOCITE CHALCOMENITE MALACHITE WULFENITE
    Year: 1966
    Country: Congo (RDC)
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