Mineralogy Database

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29 samples matching your criteria

  • Sample n°4528.1 : rounded crystals (1 cm)
    Minerals: XENOTIME-(Y)
    Year: 1954
    Country: Rwanda
  • Sample n°4535 : grey powdery debris
    Minerals: VIVIANITE
    Year: 1954
    Country: Rwanda
  • Sample n°4639 : concentrate (1 cm)
    Minerals: STAUROLITE
    Year: 1954
    Country: Rwanda
  • Sample n°4695 : fine black needles (4 cm) in blue quartz
    Minerals: TOURMALINE
    Year: 1954
    Country: Rwanda
  • Sample n°5479 : beige porcelain-textured block (10 cm)
    Minerals: CHALCEDONY (quartz)
    Year: 1964
    Country: Rwanda
  • Sample n°9950 : blue impregnations in saccharoidal quartz
    Minerals: APATITE
    Year: 1960
    Country: Rwanda
  • Sample n°9953 : partly altered pyrite crystals in saccharoidal quartz
    Minerals: PYRITE QUARTZ
    Year: 1963
    Country: Rwanda
  • Sample n°10294 : debris
    Minerals: AMETHYST (quartz)
    Year:
    Country: Rwanda
  • Sample n°10295 : black reniform block (5 cm)
    Minerals: GOETHITE
    Year: 1963
    Country: Rwanda
  • Sample n°10299 : olive-green block (5 cm)
    Minerals: CHALCEDONY (quartz)
    Year: 1963
    Country: Rwanda
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