Mineralogy Database

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5 samples matching your criteria

  • Sample n°375 : grey fibres in quartz
    Minerals: TREMOLITE QUARTZ
    Year: 1920
    Country: Congo (RDC)
  • Sample n°434 : plates (0.5 cm) in rounded yellowish quartz
    Minerals: GOLD QUARTZ
    Year: 1920
    Country: Congo (RDC)
  • Sample n°435 : red cubes (2 mm to 3 cm), pseudomorphic after pyrite crystals
    Minerals: HEMATITE
    Year: 1920
    Country: Congo (RDC)
  • Sample n°436 : specular debris
    Minerals: HEMATITE
    Year: 1920
    Country: Congo (RDC)
  • Sample n°437 : clear prismatic crystals (5 cm)
    Minerals: QUARTZ
    Year: 1920
    Country: Congo (RDC)
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