Mineralogy Database

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24 samples matching your criteria

  • Sample n°1341 : crystals (mm) in grey phyllite
    Minerals: PYRITE
    Year: 1937
    Country: Congo (RDC)
  • Sample n°1343 : band of black fibres in pegmatite
    Minerals: TOURMALINE
    Year: 1938
    Country: Congo (RDC)
  • Sample n°1347 : plate-shaped crystals (6 cm)
    Minerals: MUSCOVITE
    Year: 1939
    Country: Congo (RDC)
  • Sample n°1352 : crust of dark prismatic crystals (2 cm)
    Minerals: QUARTZ
    Year: 1939
    Country: Congo (RDC)
  • Sample n°1357 : two bronze-coloured crystals (1 cm) in vein quartz with mica
    Minerals: PYRRHOTITE MICA QUARTZ
    Year: 1936
    Country: Congo (RDC)
  • Sample n°1358 : geode with cassiterite crystals (1 cm) in micaceous quartzite
    Minerals: CASSITERITE
    Year: 1936
    Country: Congo (RDC)
  • Sample n°1362 : massive vein (1 x 10 cm) on gabbro
    Minerals: PYRRHOTITE
    Year: 1936
    Country: Congo (RDC)
  • Sample n°1363 : black crystalline coating on vein quartz (20 cm)
    Minerals: CASSITERITE MUSCOVITE QUARTZ
    Year: 1936
    Country: Congo (RDC)
  • Sample n°1364 : broken crystal (3 cm) in vein quartz
    Minerals: CASSITERITE QUARTZ
    Year: 1936
    Country: Congo (RDC)
  • Sample n°1365 : aggregate of twinned crystals (2 cm) on greisen
    Minerals: CASSITERITE
    Year: 1936
    Country: Congo (RDC)
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