Mineralogy Database

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24 samples matching your criteria

  • Sample n°1366 : layer of purple crystals (12 cm)
    Minerals: AMETHYST (quartz)
    Year: 1936
    Country: Congo (RDC)
  • Sample n°1368 : purple crystals on feldsparbearing rock
    Minerals: FLUORITE FELDSPAR
    Year: 1936
    Country: Congo (RDC)
  • Sample n°1387 : black spots (5 mm) on yellow quartz
    Minerals: CASSITERITE QUARTZ
    Year: 1936
    Country: Congo (RDC)
  • Sample n°1388 : cassiterite crystal (1 cm) on saccharoidal quartz
    Minerals: CASSITERITE
    Year: 1936
    Country: Congo (RDC)
  • Sample n°1389 : black twinned crystal (6 cm)
    Minerals: CASSITERITE
    Year: 1936
    Country: Congo (RDC)
  • Sample n°1390 : debris
    Minerals: CASSITERITE
    Year: 1936
    Country: Congo (RDC)
  • Sample n°1393 : cassiterite crystals (0.1-3 cm) in micaschist
    Minerals: CASSITERITE QUARTZ
    Year: 1936
    Country: Congo (RDC)
  • Sample n°1400 : discontinuous vein in vein quartz
    Minerals: CASSITERITE QUARTZ
    Year: 1938
    Country: Congo (RDC)
  • Sample n°1401 : hexagonal plates in pegmatite
    Minerals: MUSCOVITE
    Year: 1943
    Country: Unknown
  • Sample n°1403 : crystal (cm) in vein quartz
    Minerals: RUTILE QUARTZ
    Year: 1939
    Country: Congo (RDC)
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