Mineralogy Database

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573 samples matching your criteria

  • Sample n°716 : chisel-shaped crystals (2 cm) in chalcedony geode
    Minerals: CALCITE CHALCEDONY (quartz) QUARTZ
    Year: 1912
    Country: Congo (RDC)
  • Sample n°756 : fibro-radial plates
    Minerals: CALCITE
    Year: 1926
    Country: Congo (RDC)
  • Sample n°781 : crystals in quartz and ochrous material
    Minerals: GOETHITE GALENA CALCITE QUARTZ
    Year: 1927
    Country: Congo (RDC)
  • Sample n°813 : massive
    Minerals: CALCITE
    Year: 1932
    Country: Congo (RDC)
  • Sample n°832 : speckles in calcite vein
    Minerals: CHALCOPYRITE CALCITE
    Year: 1933
    Country: Congo (RDC)
  • Sample n°833 : mineralised calcite vein
    Minerals: CHALCOPYRITE TENNANTITE CALCITE
    Year: 1933
    Country: Congo (RDC)
  • Sample n°835 : concretionary
    Minerals: MALACHITE CALCITE
    Year: 1933
    Country: Congo (RDC)
  • Sample n°843 : crystalline crust (4 cm)
    Minerals: CALCITE
    Year:
    Country: South Africa
  • Sample n°956 : white and grey debris
    Minerals: CALCITE
    Year: 1936
    Country: Congo (RDC)
  • Sample n°957 : white and purple debris
    Minerals: CALCITE FLUORITE
    Year: 1936
    Country: Congo (RDC)
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