Mineralogy Database

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91 samples matching your criteria

  • Sample n°17933 : thick fine-laminar to massive crust
    Minerals: CRYPTOMELANE
    Year: 2017
    Country: Congo (RDC)
  • Sample n°17934 : massive crust
    Minerals: CRYPTOMELANE
    Year: 2017
    Country: Congo (RDC)
  • Sample n°17935 : complex stalactitic deposit
    Minerals: CRYPTOMELANE MANGANITE
    Year: 2017
    Country: Congo (RDC)
  • Sample n°17936 : porous layered deposit
    Minerals: MANGANESE OXIDES
    Year: 2017
    Country: Congo (RDC)
  • Sample n°17937 : coating on porous substrate
    Minerals: MANGANITE
    Year: 2017
    Country: Congo (RDC)
  • Sample n°17938 : nodular growth structure
    Minerals: CRYPTOMELANE
    Year: 2017
    Country: Congo (RDC)
  • Sample n°17939 : crust with stalactitic aspect
    Minerals: PYROLUSITE
    Year: 2017
    Country: Congo (RDC)
  • Sample n°17940 : partly fibrous veins, in ferruginous substrate
    Minerals: MANGANESE OXIDES
    Year: 2017
    Country: Congo (RDC)
  • Sample n°17941 : complex deposit
    Minerals: MANGANESE OXIDES
    Year: 2017
    Country: Congo (RDC)
  • Sample n°17942 : thick uniform crust
    Minerals: CRYPTOMELANE
    Year: 2017
    Country: Congo (RDC)
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