Mineralogy Database

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7938 samples matching your criteria

  • Sample n°852 : red crystals (feldspar), green plates (biotite)
    Minerals: BIOTITE FELDSPAR
    Year:
    Country: Congo (RDC)
  • Sample n°865 : speckes in vein quartz
    Minerals: CHALCOPYRITE QUARTZ
    Year: 1934
    Country: Congo (RDC)
  • Sample n°866 : small crystals in sandstone
    Minerals: PYRITE
    Year: 1934
    Country: Congo (RDC)
  • Sample n°868 : thin vein in quartz
    Minerals: GALENA QUARTZ
    Year: 1934
    Country: Congo (RDC)
  • Sample n°869 : pegmatite
    Minerals: BIOTITE KYANITE
    Year: 1934
    Country: Congo (RDC)
  • Sample n°870 : black crystals in vein quartz
    Minerals: CASSITERITE CHALCOCITE CHALCOPYRITE
    Year: 1934
    Country: Congo (RDC)
  • Sample n°871 : gold on cavernous quartz
    Minerals: GOLD QUARTZ
    Year: 1934
    Country: Congo (RDC)
  • Sample n°902 : altered pink fibrous blocks
    Minerals: ANTHOPHYLLITE
    Year: 1933
    Country: Congo (RDC)
  • Sample n°903 : altered pink fibrous block
    Minerals: ANTHOPHYLLITE
    Year: 1933
    Country: Congo (RDC)
  • Sample n°904 : massive, pink-purple
    Minerals: SPHEROCOBALTITE
    Year: 1904
    Country: Congo (RDC)
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