Mineralogy Database

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26 samples matching your criteria

  • Sample n°700 : earthy material in greisen
    Minerals: GRAPHITE QUARTZ
    Year: 1913
    Country: Congo (RDC)
  • Sample n°3059 : veins in quartzite
    Minerals: GRAPHITE
    Year: 1951
    Country: Congo (RDC)
  • Sample n°3060 : vein in vein quartz
    Minerals: GRAPHITE
    Year: 1951
    Country: Congo (RDC)
  • Sample n°4254 : soft black block
    Minerals: GRAPHITE
    Year: 1954
    Country: Congo (RDC)
  • Sample n°5465 : earthy block (10 cm)
    Minerals: GRAPHITE
    Year: 1955
    Country: Congo (RDC)
  • Sample n°7985 : microgranular black blocks
    Minerals: GRAPHITE
    Year:
    Country: Congo (RDC)
  • Sample n°9081 : bright black block (8 cm)
    Minerals: GRAPHITE QUARTZ
    Year: 1962
    Country: Rwanda
  • Sample n°10237 : massive block (10 cm)
    Minerals: GRAPHITE
    Year: 1964
    Country: Czech Republic
  • Sample n°10303 : mixed phosphates (6 cm)
    Minerals: GRAPHITE TRIPLITE MONTEBRASITE
    Year: 1963
    Country: Rwanda
  • Sample n°10855 : rare in vein quartz
    Minerals: GALENA GRAPHITE PYRITE QUARTZ
    Year: 1930
    Country: Congo (RDC)
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