Mineralogy Database

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141 samples matching your criteria

  • Sample n°554 : stalactitic concretion
    Minerals: CHALCEDONY (quartz)
    Year: 1910
    Country: Congo (RDC)
  • Sample n°555 : blocks with pink and green veins, var chrysoprase
    Minerals: QUARTZ
    Year: 1913
    Country: Congo (RDC)
  • Sample n°556 : geode with prismatic crystals (1 cm)
    Minerals: QUARTZ CHALCEDONY (quartz)
    Year: 1913
    Country: Congo (RDC)
  • Sample n°557 : zoned pink block
    Minerals: CHALCEDONY (quartz) QUARTZ
    Year:
    Country: Congo (RDC)
  • Sample n°716 : chisel-shaped crystals (2 cm) in chalcedony geode
    Minerals: CALCITE CHALCEDONY (quartz) QUARTZ
    Year: 1912
    Country: Congo (RDC)
  • Sample n°717 : elongated white crystals, silky
    Minerals: SILLIMANITE
    Year: 1909
    Country: Congo (RDC)
  • Sample n°718.1 : fragment (10 cm)
    Minerals: SILLIMANITE
    Year: 1909
    Country: Congo (RDC)
  • Sample n°718.2 : rounded black crystal, var. fibrolite
    Minerals: SILLIMANITE
    Year: 1909
    Country: Congo (RDC)
  • Sample n°719 : mesh of crystals on rounded fragment
    Minerals: KYANITE
    Year:
    Country: Congo (RDC)
  • Sample n°720 : rock with large black crystals
    Minerals: KYANITE QUARTZ
    Year:
    Country: Congo (RDC)
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