Mineralogy Database

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327 samples matching your criteria

  • Sample n°1247 : red prismatic crystals (3 cm)
    Minerals: QUARTZ
    Year: 1946
    Country: Congo (RDC)
  • Sample n°1404 : debris of red primatic crystals and quartz (amethyst) (3 cm)
    Minerals: AMETHYST (quartz)
    Year: 1946
    Country: Congo (RDC)
  • Sample n°1716 : concentrate of octahedral crystals (3 mm)
    Minerals: MAGNETITE
    Year:
    Country: Congo (RDC)
  • Sample n°1742 : pink block with prominent cleavage (4 cm)
    Minerals: FELDSPAR
    Year:
    Country: Congo (RDC)
  • Sample n°1743 : oxidised ore in breccious limestone
    Minerals: CHALCOCITE KATANGITE (plancheite) MALACHITE
    Year:
    Country: Congo (RDC)
  • Sample n°1745 : reniform grey and white crust (chalcedony), olive-coloured powder (mottramite)
    Minerals: CHALCEDONY (quartz) MOTTRAMITE
    Year:
    Country: Congo (RDC)
  • Sample n°1751 : fine-grained olive-green mottramite on limestone
    Minerals: MOTTRAMITE CHALCEDONY (quartz)
    Year:
    Country: Congo (RDC)
  • Sample n°1754 : breccious oxidised ore
    Minerals: MALACHITE CHALCOCITE
    Year:
    Country: Congo (RDC)
  • Sample n°2476 : block with prominent cleavage (15 cm), var. amazonite
    Minerals: MICROCLINE
    Year:
    Country: Congo (RDC)
  • Sample n°2477 : green blocks with prominent cleavage (12 cm), var. amazonite
    Minerals: MICROCLINE QUARTZ
    Year:
    Country: Congo (RDC)
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