Mineralogy Database

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2 samples matching your criteria

  • 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)