Mineralogy Database

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94 samples matching your criteria

  • Sample n°3020 : plates (25 cm)
    Minerals: BIOTITE
    Year: 1950
    Country: Congo (RDC)
  • Sample n°3561 : biotite with white kaolinite spots
    Minerals: BIOTITE KAOLINITE
    Year:
    Country: Congo (RDC)
  • Sample n°4688 : plates (5 mm) on black schist
    Minerals: BIOTITE
    Year: 1954
    Country: Congo (RDC)
  • Sample n°5466 : large crystals (30 cm)
    Minerals: BIOTITE
    Year: 1955
    Country: Congo (RDC)
  • Sample n°6108 : biotitite sample
    Minerals: BIOTITE
    Year: 1957
    Country: Congo (RDC)
  • Sample n°6226 : sample with yellow phuralumite crystals on biotite
    Minerals: PHURALUMITE BIOTITE
    Year: 1958
    Country: Congo (RDC)
  • Sample n°6400 : large black lamellae on vein quartz
    Minerals: BIOTITE
    Year: 1958
    Country: Burundi
  • Sample n°6814 : sample with red thorite crystals (var. orangite), mixed with biotite
    Minerals: THORITE BIOTITE
    Year: 1957
    Country: Norway
  • Sample n°6890 : black-red biotitite (6 cm),var rubellane
    Minerals: BIOTITE
    Year: 1954
    Country: Germany
  • Sample n°6897 : crystalline block (7 cm)
    Minerals: BIOTITE QUARTZ
    Year: 1954
    Country: Czech Republic
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