Mineralogy Database

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7938 samples matching your criteria

  • Sample n°636 : green crust (malachite) covering nodules of blue crystals (azurite)
    Minerals: AZURITE MALACHITE
    Year: 1926
    Country: Congo (RDC)
  • Sample n°637 : sample with rutherfordine as yellow crust, massive curite
    Minerals: RUTHERFORDINE CURITE URANINITE
    Year: 1926
    Country: Congo (RDC)
  • Sample n°638 : malachite coatings on sulfide ore
    Minerals: CHALCOCITE MALACHITE
    Year: 1926
    Country: Congo (RDC)
  • Sample n°639 : massive, grey
    Minerals: HEMATITE
    Year: 1917
    Country: Congo (RDC)
  • Sample n°645 : pink pisolithic bauxite (12 cm)
    Minerals: unspecified
    Year: 1916
    Country: Congo (RDC)
  • Sample n°646 : stalactites (15 cm)
    Minerals: CALCITE
    Year:
    Country: Congo (RDC)
  • Sample n°647 : grey fibres in quartz (10 cm)
    Minerals: TREMOLITE QUARTZ
    Year: 1916
    Country: Congo (RDC)
  • Sample n°648 : corroded clear prismatic crystals (8 cm)
    Minerals: QUARTZ
    Year: 1916
    Country: Congo (RDC)
  • Sample n°650 : rust-coloured blue plates (4 cm)
    Minerals: KYANITE
    Year: 1917
    Country: Congo (RDC)
  • Sample n°651 : small plates
    Minerals: MUSCOVITE
    Year: 1926
    Country: Congo (RDC)
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