Mineralogy Database

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230 samples matching your criteria

  • Sample n°979 : blue to black, striated
    Minerals: CHALCOPYRITE SPHALERITE GALENA GOETHITE PYRITE RENIERITE TENNANTITE TETRAHEDRITE BORNITE CHALCOCITE
    Year: 1931
    Country: Congo (RDC)
  • Sample n°980 : small blue metallic fragments, with polished section
    Minerals: CHALCOPYRITE GOETHITE TETRADYMITE GALENA BORNITE CHALCOCITE RENIERITE SILVER SPHALERITE LINNAEITE TENNANTITE
    Year: 1931
    Country: Congo (RDC)
  • Sample n°996 : ferruginous substrate with veins of copper minerals and quartz
    Minerals: DIOPTASE HEMATITE QUARTZ CHALCEDONY (quartz) CHRYSOCOLLA GOETHITE
    Year: 1937
    Country: Congo (RDC)
  • Sample n°997 : network of small veins in ferruginous matrix
    Minerals: MALACHITE GOETHITE
    Year: 1937
    Country: Congo (RDC)
  • Sample n°1032 : concretion
    Minerals: GOETHITE
    Year: 1938
    Country: Congo (RDC)
  • Sample n°1156 : two small fragments with blue metallic lustre, with polished section
    Minerals: COVELLITE MALACHITE CHALCOCITE GOETHITE
    Year: 1946
    Country: Congo (RDC)
  • Sample n°1157 : sample with blue to red metallic lustre, oxidised, with polished section
    Minerals: CHALCOCITE CHALCOPYRITE GOETHITE PYRITE BORNITE MALACHITE TENNANTITE
    Year:
    Country: Congo (RDC)
  • Sample n°1169 : tabular crystals (malachite), fibro-radial aggregates (goethite)
    Minerals: MALACHITE GOETHITE
    Year: 1946
    Country: Congo (RDC)
  • Sample n°1226 : small fragment of scoriaceous material
    Minerals: MANGANESE OXIDES GOETHITE
    Year: 1942
    Country: Congo (RDC)
  • Sample n°1235 : poorly developed crystals in geode
    Minerals: HEMIMORPHITE GOETHITE
    Year: 1942
    Country: Congo (RDC)
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