Mineralogy Database

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24 samples matching your criteria

  • Sample n°142 : pink block, prominent cleavage
    Minerals: MICROCLINE
    Year: 1900
    Country: Congo (RDC)
  • Sample n°143 : grey cleaved crystals
    Minerals: MICROCLINE BIOTITE
    Year: 1900
    Country: Congo (RDC)
  • Sample n°6029 : group of prismatic pyramidal crystals (30 cm)
    Minerals: QUARTZ
    Year:
    Country: Tanzania
  • Sample n°108 : quartz with malachite spots and iron oxides
    Minerals: HEMATITE MALACHITE
    Year: 1900
    Country: Congo (RDC)
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