Mineralogy Database

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1097 samples matching your criteria

  • Sample n°4233 : gold on geodic quartz
    Minerals: GOLD QUARTZ
    Year:
    Country: Congo (RDC)
  • Sample n°4236 : nugget (7 mm) in rust-coloured quartz
    Minerals: GOLD QUARTZ
    Year: 1954
    Country: Rwanda
  • Sample n°4239 : small block of impregnated quartz
    Minerals: GOLD QUARTZ
    Year: 1954
    Country: Congo (RDC)
  • Sample n°4286 : metallic nodules in vein quartz
    Minerals: ARSENOPYRITE QUARTZ
    Year:
    Country: Rwanda
  • Sample n°4304 : divers concentrates, var. sapphire, var. ruby
    Minerals: CORUNDUM QUARTZ
    Year: 1954
    Country: Rwanda
  • Sample n°4310 : large metallic tabular crystals in vein quartz
    Minerals: HEMATITE QUARTZ
    Year: 1954
    Country: Congo (RDC)
  • Sample n°4335 : brown prismatic crystals forming xyloidal occurrences in vein quartz
    Minerals: CASSITERITE QUARTZ
    Year: 1954
    Country: Congo (RDC)
  • Sample n°4367 : brown crystals (1 cm) in pegmatite with muscovite
    Minerals: CASSITERITE MAGNETITE MUSCOVITE QUARTZ
    Year: 1954
    Country: Rwanda
  • Sample n°4374 : layer (6 cm) of bright black crystals
    Minerals: CASSITERITE QUARTZ
    Year: 1954
    Country: Rwanda
  • Sample n°4428 : crystals (cm), as repllacement of pyrite in quartz geode
    Minerals: HEMATITE QUARTZ
    Year: 1954
    Country: Burundi
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