Mineralogy Database

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442 samples matching your criteria

  • Sample n°812 : granular, specular, purple
    Minerals: HEMATITE
    Year: 1932
    Country: Congo (RDC)
  • Sample n°852 : red crystals (feldspar), green plates (biotite)
    Minerals: BIOTITE FELDSPAR
    Year:
    Country: Congo (RDC)
  • Sample n°941 : debris
    Minerals: CHALCOPYRITE
    Year: 1936
    Country: Congo (RDC)
  • Sample n°1114 : oxidised material
    Minerals: CHALCOCITE MALACHITE
    Year: 1938
    Country: Congo (RDC)
  • Sample n°1406 : concretionary chalcedony
    Minerals: CHALCEDONY (quartz)
    Year:
    Country: Congo (RDC)
  • Sample n°1407 : nice banded concretion
    Minerals: CHALCEDONY (quartz) QUARTZ
    Year:
    Country: Congo (RDC)
  • Sample n°1701 : rust-coloured black crystals
    Minerals: ILMENITE GOETHITE
    Year:
    Country: Congo (RDC)
  • Sample n°1702 : manganese-bearing laterite
    Minerals: PYROLUSITE
    Year: 1966
    Country: Congo (RDC)
  • Sample n°1706 : mixed ore
    Minerals: CHALCOPYRITE HEMATITE MALACHITE QUARTZ
    Year:
    Country: Congo (RDC)
  • Sample n°1709 : breccious material
    Minerals: BARYTE
    Year:
    Country: Congo (RDC)
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