Mineralogy Database

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331 samples matching your criteria

  • Sample n°9945 : greenish white block with brown childrenite
    Minerals: BRAZILIANITE CHILDRENITE
    Year:
    Country: Rwanda
  • Sample n°9948 : geodic quartz with purple encrustation
    Minerals: PHOSPHOSIDERITE
    Year:
    Country: Rwanda
  • Sample n°9950 : blue impregnations in saccharoidal quartz
    Minerals: APATITE
    Year: 1960
    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°9953 : partly altered pyrite crystals in saccharoidal quartz
    Minerals: PYRITE QUARTZ
    Year: 1963
    Country: Rwanda
  • Sample n°10244 : purplish fragment (8 cm) surrounded by pink muscovite
    Minerals: CASSITERITE
    Year:
    Country: Rwanda
  • Sample n°10245 : rounded elongated white crystals (1-5 cm)
    Minerals: CORUNDUM
    Year:
    Country: Rwanda
  • Sample n°10246 : brown octahedral crystals (1-3 cm)
    Minerals: WOLFRAMITE
    Year:
    Country: Rwanda
  • Sample n°10247 : white block with greasy lustre (6 cm)
    Minerals: MONTEBRASITE
    Year:
    Country: Rwanda
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