Mineralogy Database

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331 samples matching your criteria

  • Sample n°10447 : black crystal (2 cm)
    Minerals: TANTALITE-(Mn)
    Year:
    Country: Rwanda
  • Sample n°10448 : white saccharoidal block (7 cm)
    Minerals: ALBITE
    Year:
    Country: Rwanda
  • Sample n°10450 : white block (15 cm)
    Minerals: AMBLYGONITE
    Year: 1963
    Country: Rwanda
  • Sample n°10454 : bright black tabular crytals (1-4 cm)
    Minerals: WOLFRAMITE
    Year:
    Country: Rwanda
  • Sample n°10458 : crust of red prismatic crystals (1 cm)
    Minerals: AMETHYST (quartz)
    Year:
    Country: Rwanda
  • Sample n°10462 : black coating (5 cm) on vein quartz
    Minerals: COLUMBITE QUARTZ
    Year:
    Country: Rwanda
  • Sample n°10463 : purple block (12 cm)
    Minerals: HETEROSITE PURPURITE
    Year:
    Country: Rwanda
  • Sample n°10467 : black shiny lamellae (1 cm) in quartz from pegmatite
    Minerals: COLUMBITE TANTALITE
    Year:
    Country: Rwanda
  • Sample n°10471 : green fibrous amphibolite (8 cm)
    Minerals: ACTINOLITE
    Year:
    Country: Rwanda
  • Sample n°10472 : asbest-like block
    Minerals: TREMOLITE
    Year:
    Country: Rwanda
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