Mineralogy Database

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1477 samples matching your criteria

  • Sample n°385 : massive, black, with conchoidal fracture
    Minerals: HEMATITE
    Year: 1913
    Country: Congo (RDC)
  • Sample n°386 : massive tourmaline within quartz
    Minerals: TOURMALINE QUARTZ
    Year: 1913
    Country: Congo (RDC)
  • Sample n°387 : crust on black rock
    Minerals: CALCITE CHLORITE
    Year: 1913
    Country: Congo (RDC)
  • Sample n°483 : purplish black breccious block
    Minerals: HEMATITE
    Year: 1922
    Country: Congo (RDC)
  • Sample n°769 : debris on lava
    Minerals: SULPHUR
    Year: 1926
    Country: Congo (RDC)
  • Sample n°775 : massive galena, in quartz and iron oxides
    Minerals: GALENA GOETHITE QUARTZ
    Year: 1927
    Country: Congo (RDC)
  • Sample n°778 : masive block (8 cm)
    Minerals: GALENA QUARTZ
    Year: 1927
    Country: Congo (RDC)
  • Sample n°780 : coarse crystals, in matrix of quartz and ochreous material
    Minerals: GALENA
    Year: 1927
    Country: Congo (RDC)
  • Sample n°781 : crystals in quartz and ochrous material
    Minerals: GOETHITE GALENA CALCITE QUARTZ
    Year: 1927
    Country: Congo (RDC)
  • Sample n°783 : massive with ochre crust
    Minerals: PYRITE
    Year: 1927
    Country: Congo (RDC)
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