Mineralogy Database

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948 samples matching your criteria

  • Sample n°4353 : brown octahedral crystals (6 mm)
    Minerals: CASSITERITE
    Year: 1954
    Country: Rwanda
  • Sample n°4361 : black crystal (3 cm)
    Minerals: CASSITERITE
    Year: 1954
    Country: Rwanda
  • Sample n°4362 : debris of black crystals
    Minerals: CASSITERITE
    Year: 1954
    Country: Rwanda
  • Sample n°4377 : 'bec d'étain' twinning (5 cm)
    Minerals: CASSITERITE
    Year:
    Country: Rwanda
  • Sample n°4403 : brown concentrate (1 cm), var. malacon
    Minerals: ZIRCON
    Year: 1954
    Country: Rwanda
  • Sample n°4426 : cubes and dodecahedrons (1 cm), as alteration products of pyrite
    Minerals: GOETHITE
    Year: 1954
    Country: Rwanda
  • Sample n°4446 : black plates (6 cm)
    Minerals: COLUMBITE TANTALITE
    Year: 1954
    Country: Rwanda
  • Sample n°4523 : mixed phosphates
    Minerals: FERRISICKLERITE HETEROSITE
    Year: 1954
    Country: Rwanda
  • Sample n°4526 : purple debris
    Minerals: HETEROSITE
    Year: 1954
    Country: Rwanda
  • Sample n°4553 : white mineral in pegmatite
    Minerals: APATITE
    Year: 1954
    Country: Rwanda
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