Mineralogy Database

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331 samples matching your criteria

  • Sample n°10370 : plates (3 cm)
    Minerals: WOLFRAMITE
    Year:
    Country: Rwanda
  • Sample n°10377 : group of purple pyramidal crystals (6 cm)
    Minerals: AMETHYST (quartz)
    Year:
    Country: Rwanda
  • Sample n°10378 : white stony block (8 cm) with black columbite crystals (1 cm)
    Minerals: BERYL COLUMBITE
    Year:
    Country: Rwanda
  • Sample n°10380 : black tabular crystals (2 cm)
    Minerals: COLUMBITE
    Year:
    Country: Rwanda
  • Sample n°10381 : black and brown anhedral crystals in vein quartz
    Minerals: CASSITERITE WOLFRAMITE QUARTZ
    Year:
    Country: Rwanda
  • Sample n°10385 : group of purple pyramidal crystals (6 cm)
    Minerals: AMETHYST (quartz)
    Year:
    Country: Rwanda
  • Sample n°10387 : group of pyramidal prismatic crystals (7 cm), smoky quartz
    Minerals: QUARTZ
    Year: 1970
    Country: Rwanda
  • Sample n°10388 : black and brown tabular crystals (1-2 cm)
    Minerals: COLUMBITE TANTALITE CASSITERITE
    Year:
    Country: Rwanda
  • Sample n°10391 : black debris (2 cm)
    Minerals: COLUMBITE
    Year:
    Country: Rwanda
  • Sample n°10392 : black prismatic crystals (1-3 cm)
    Minerals: SCHORL
    Year:
    Country: Rwanda
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