Mineralogy Database

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7938 samples matching your criteria

  • Sample n°385 : massive, black, with conchoidal fracture
    Minerals: HEMATITE
    Year: 1913
    Country: Congo (RDC)
  • Sample n°386 : massive tourmaline within quartz
    Minerals: TOURMALINE QUARTZ
    Year: 1913
    Country: Congo (RDC)
  • Sample n°387 : crust on black rock
    Minerals: CALCITE CHLORITE
    Year: 1913
    Country: Congo (RDC)
  • Sample n°390 : concretionnary debris
    Minerals: MALACHITE
    Year:
    Country: Congo (RDC)
  • Sample n°391 : rhombohedron (7 cm)
    Minerals: CALCITE
    Year:
    Country: Congo (RDC)
  • Sample n°392 : nodules in limestone
    Minerals: PYRITE
    Year:
    Country: Congo (RDC)
  • Sample n°393 : massive, red
    Minerals: HEMATITE
    Year:
    Country: Congo (RDC)
  • Sample n°394 : specular
    Minerals: HEMATITE
    Year:
    Country: Congo (RDC)
  • Sample n°395 : specular, massive
    Minerals: HEMATITE
    Year:
    Country: Congo (RDC)
  • Sample n°397 : block of green needle-shaped crystals
    Minerals: EPIDOTE
    Year:
    Country: Congo (RDC)
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