Mineralogy Database

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1547 samples matching your criteria

  • Sample n°8918 : black tabular crystals (2 cm) in quartz
    Minerals: COLUMBITE TANTALITE QUARTZ
    Year:
    Country: Rwanda
  • Sample n°8920 : white block (10 cm)
    Minerals: MONTEBRASITE
    Year:
    Country: Rwanda
  • Sample n°8921 : layered block (14 cm) with beds of black needles
    Minerals: DRAVITE MUSCOVITE
    Year:
    Country: Rwanda
  • Sample n°8922 : white-pink block (15 cm)
    Minerals: FELDSPAR
    Year: 1961
    Country: Rwanda
  • Sample n°8923 : white block with greasy lustre (12 cm), with orange apatite
    Minerals: MONTEBRASITE APATITE
    Year:
    Country: Rwanda
  • Sample n°8924 : grey muscovitite (12 cm), var. phengite
    Minerals: MUSCOVITE
    Year:
    Country: Rwanda
  • Sample n°8928 : dark blue apatite in pegmatite (15 cm)
    Minerals: APATITE
    Year:
    Country: Rwanda
  • Sample n°8933 : bluish grey porcelaneous block (12 cm)
    Minerals: VARISCITE
    Year: 1961
    Country: Rwanda
  • Sample n°8936 : groups of yellowish prismatic crystals (5-8 cm)
    Minerals: QUARTZ
    Year: 1961
    Country: Rwanda
  • Sample n°8937 : very large block
    Minerals: BIOTITE MUSCOVITE QUARTZ TOURMALINE
    Year:
    Country: Rwanda
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