Mineralogy Database

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98 samples matching your criteria

  • Sample n°14370 : bottle-green vitreous block (15 cm)
    Minerals: unidentified
    Year: 1986
    Country: Congo (RDC)
  • 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
  • Sample n°14373 : block of grey striated crystals (20 cm)
    Minerals: CASSITERITE
    Year: 1986
    Country: Rwanda
  • Sample n°14374 : black needles (5 cm)
    Minerals: SCHORL
    Year: 1986
    Country: Rwanda
  • Sample n°14375 : fragment with shiny surface (20 cm)
    Minerals: GOETHITE
    Year: 1986
    Country: Rwanda
  • Sample n°3112 : fine-grained spahelerite masses in albitic pegmatite
    Minerals: SPHALERITE ALBITE
    Year: 1952
    Country: Congo (RDC)
  • Sample n°5825 : microcline from pegmatite
    Minerals: MICROCLINE
    Year: 1958
    Country: Congo (RDC)
  • Sample n°3124 : plates
    Minerals: MUSCOVITE
    Year:
    Country: Congo (RDC)
  • Sample n°16144 : colourless to light greenish clear fragments
    Minerals: FLUORITE
    Year:
    Country: Congo (RDC)
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