Mineralogy Database

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1547 samples matching your criteria

  • Sample n°14357 : block of bright black crystals (6 mm)
    Minerals: CASSITERITE
    Year: 1986
    Country: Rwanda
  • Sample n°14358 : black block (5 cm)
    Minerals: COLUMBITE TANTALITE
    Year: 1986
    Country: Rwanda
  • Sample n°14359 : coarse-grained fragment
    Minerals: COLUMBITE TANTALITE
    Year: 1986
    Country: Rwanda
  • Sample n°14360 : black oxidised plate (8 cm)
    Minerals: COLUMBITE TANTALITE
    Year: 1986
    Country: Rwanda
  • Sample n°14365 : massive metallic block, consisting in part of elongated crystals (metallurgic product)
    Minerals: BISMUTH
    Year: 1986
    Country: Rwanda
  • Sample n°14367 : large single crystal (22 kg)
    Minerals: CASSITERITE
    Year: 1986
    Country: Rwanda
  • Sample n°14368 : cleaved block (60 kg)
    Minerals: CASSITERITE
    Year: 1986
    Country: Rwanda
  • Sample n°14369 : group of grey crystals with rust-coloured surface (30 kg)
    Minerals: CASSITERITE
    Year: 1986
    Country: Rwanda
  • Sample n°14371 : block (40 kg) of rust-coloured crystals (10 cm)
    Minerals: CASSITERITE
    Year: 1986
    Country: Rwanda
  • Sample n°14372 : plate (30 cm) of prismatic crystals (10 cm) with rust-coloured coatings
    Minerals: CASSITERITE
    Year: 1986
    Country: Rwanda
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