Mineralogy Database

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83 samples matching your criteria

  • Sample n°3304 : anhedral crystals (1-3 cm)
    Minerals: CASSITERITE
    Year: 1931
    Country: Rwanda
  • Sample n°4322.2 : small crystal
    Minerals: RUTILE
    Year: 1954
    Country: Rwanda
  • Sample n°4363 : layer of grey crystals (4 cm)
    Minerals: CASSITERITE
    Year: 1954
    Country: Rwanda
  • Sample n°4364 : brown twinned crystals ('bec d'étain') (3 cm) in quartz vein
    Minerals: CASSITERITE
    Year: 1954
    Country: Rwanda
  • Sample n°4365 : intergrowth of large crystals, glassy lustre
    Minerals: CASSITERITE
    Year: 1954
    Country: Rwanda
  • Sample n°4366 : aggregate of brown crystals (1 cm) on vein quartz
    Minerals: CASSITERITE
    Year: 1954
    Country: Rwanda
  • Sample n°4448 : dull black crystals (1-4 cm)
    Minerals: COLUMBITE TANTALITE
    Year: 1954
    Country: Rwanda
  • Sample n°4604 : pentagonal dodecahedron (1 cm)
    Minerals: GARNET
    Year: 1954
    Country: Rwanda
  • Sample n°6554 : joined stalactites (22 cm)
    Minerals: CALCITE
    Year:
    Country: Rwanda
  • Sample n°8560 : stony debris (5 cm)
    Minerals: BERYL
    Year:
    Country: Rwanda
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