Mineralogy Database

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103 samples matching your criteria

  • Sample n°8615 : oxidised debris (2 cm)
    Minerals: FERBERITE
    Year:
    Country: Rwanda
  • Sample n°9081 : bright black block (8 cm)
    Minerals: GRAPHITE QUARTZ
    Year: 1962
    Country: Rwanda
  • Sample n°9088 : black vesicular lava (9 cm), with anorthite (var. bytownite)
    Minerals: FORSTERITE ANORTHITE DIOPSIDE
    Year: 1962
    Country: Rwanda
  • Sample n°9746.1 : layered massive block (9 cm)
    Minerals: CASSITERITE
    Year:
    Country: Rwanda
  • Sample n°9746.2 : brown crystalline crusts (1 cm) in tourmaline-bearing layered quartzite
    Minerals: CASSITERITE
    Year:
    Country: Rwanda
  • Sample n°9928 : blue apatite in pegmatite
    Minerals: APATITE
    Year:
    Country: Rwanda
  • Sample n°9951 : grey lava (15 cm) with white phenocrysts
    Minerals: BIOTITE TITANITE
    Year:
    Country: Rwanda
  • Sample n°9952 : augite crystals (1 cm) in pink lava
    Minerals: AUGITE
    Year:
    Country: Rwanda
  • Sample n°10246 : brown octahedral crystals (1-3 cm)
    Minerals: WOLFRAMITE
    Year:
    Country: Rwanda
  • Sample n°10267 : aggregates of bright black prismatic crystals (4 cm)
    Minerals: SCHORL
    Year: 1963
    Country: Rwanda
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