Mineralogy Database

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95 samples matching your criteria

  • Sample n°18986 : medium-grained biotitite
    Minerals: BIOTITE
    Year:
    Country: Congo (RDC)
  • Sample n°18996 : aggregates in matrix
    Minerals: BIOTITE
    Year:
    Country: Congo (RDC)
  • Sample n°18999 : large bioite aggregates in carbonatite
    Minerals: BIOTITE CALCITE
    Year: 1972
    Country: Congo (RDC)
  • Sample n°19357 : large zoned crystal
    Minerals: BIOTITE
    Year: 2020
    Country: Madagascar
  • Sample n°20419 : white aggregates in biotite-rich matrix with long tourmaline crystals
    Minerals: BIOTITE FELDSPAR TOURMALINE
    Year: 2025
    Country: Congo (RDC)
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