Mineralogy Database

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7938 samples matching your criteria

  • Sample n°1582 : small pyramidal crytals on schist
    Minerals: ARSENOPYRITE
    Year: 1939
    Country: Congo (RDC)
  • Sample n°1583 : plate-shaped crystals on rock substrate
    Minerals: BIOTITE
    Year: 1939
    Country: Congo (RDC)
  • Sample n°1584 : grains (50 g)
    Minerals: GOLD
    Year:
    Country: Congo (RDC)
  • Sample n°1586 : sample composed of small concretions
    Minerals: GOETHITE
    Year:
    Country: Congo (RDC)
  • Sample n°1587 : specular, on quartz
    Minerals: HEMATITE QUARTZ
    Year:
    Country: Congo (RDC)
  • Sample n°1588 : transformed cubic pyrite crystals (0.5 cm)
    Minerals: HEMATITE
    Year:
    Country: Congo (RDC)
  • Sample n°1589 : red concretion
    Minerals: GOETHITE
    Year:
    Country: Congo (RDC)
  • Sample n°1590 : small block of white clay
    Minerals: MONTMORILLONITE
    Year:
    Country: Congo (RDC)
  • Sample n°1595 : blue powdery material
    Minerals: VIVIANITE
    Year:
    Country: Congo (RDC)
  • Sample n°1597 : massive oxidised material
    Minerals: HEMATITE GOETHITE
    Year:
    Country: Congo (RDC)
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