Mineralogy Database

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4 samples matching your criteria

  • Sample n°6401.1 : yellow coating on vein quartz
    Minerals: NONTRONITE
    Year: 1958
    Country: Congo (RDC)
  • Sample n°6422 : mixed clay blocks
    Minerals: NONTRONITE MONTMORILLONITE
    Year:
    Country: Congo (RDC)
  • Sample n°6823 : grass-green clayey block (8 cm)
    Minerals: NONTRONITE
    Year: 1954
    Country: France
  • Sample n°15722 : nontronite with slickensides
    Minerals: NONTRONITE
    Year: 1966
    Country: South Africa