Mineralogy Database

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1547 samples matching your criteria

  • Sample n°1997 : bright black plate (4 cm)
    Minerals: WOLFRAMITE
    Year:
    Country: Rwanda
  • Sample n°2004 : black crystals in large block of greisen
    Minerals: TANTALITE
    Year:
    Country: Rwanda
  • Sample n°2006 : black plates (4 cm) in block of greisen (12 cm)
    Minerals: TANTALITE QUARTZ
    Year:
    Country: Rwanda
  • Sample n°2007 : black tabular crystals (2 cm) in micaceous quartz
    Minerals: TANTALITE QUARTZ
    Year:
    Country: Rwanda
  • Sample n°2020 : pink plates (15 cm)
    Minerals: MUSCOVITE
    Year:
    Country: Rwanda
  • Sample n°2023 : black spots and dull shapeless crystals in pegmatite
    Minerals: BERYL TOURMALINE
    Year:
    Country: Rwanda
  • Sample n°2487 : black plates (2 cm) and needles in altered greisen (16 cm)
    Minerals: TANTALITE
    Year:
    Country: Rwanda
  • Sample n°2857 : purple block (5 cm)
    Minerals: HETEROSITE
    Year: 1948
    Country: Rwanda
  • Sample n°2858 : purple and pink block (8 cm)
    Minerals: HETEROSITE ALLUAUDITE
    Year: 1948
    Country: Rwanda
  • Sample n°2859 : purple block (4 cm)
    Minerals: FERRISICKLERITE
    Year: 1948
    Country: Rwanda
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