Mineralogy Database

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141 samples matching your criteria

  • Sample n°336 : massive, red
    Minerals: GOETHITE
    Year: 1912
    Country: Congo (RDC)
  • Sample n°337 : geodes with crystals of 1 to 3 cm
    Minerals: CALCITE
    Year: 1913
    Country: Congo (RDC)
  • Sample n°338 : pink fibrous concretion
    Minerals: ARAGONITE
    Year: 1909
    Country: Congo (RDC)
  • Sample n°339 : white block
    Minerals: QUARTZ
    Year: 1912
    Country: Congo (RDC)
  • Sample n°341 : reniform yellow block
    Minerals: CHALCEDONY (quartz) QUARTZ
    Year: 1910
    Country: Congo (RDC)
  • Sample n°344 : massive, blue
    Minerals: QUARTZ
    Year: 1910
    Country: Congo (RDC)
  • Sample n°348 : microcrystalline coating on quartzite
    Minerals: BARYTE
    Year:
    Country: Congo (RDC)
  • Sample n°349 : fibrous, yellowish
    Minerals: CALCITE
    Year: 1913
    Country: Congo (RDC)
  • Sample n°350 : crust composed of crystals (0.5 cm)
    Minerals: CALCITE PYRRHOTITE
    Year: 1913
    Country: Congo (RDC)
  • Sample n°531 : coating on quartzite
    Minerals: MALACHITE CALCITE
    Year:
    Country: Congo (RDC)
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