Mineralogy Database

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105 samples matching your criteria

  • Sample n°41 : rounded debris
    Minerals: CHALCEDONY (quartz) QUARTZ
    Year: 1897
    Country: Congo (RDC)
  • Sample n°246 : pink, massive
    Minerals: CHALCEDONY (quartz)
    Year: 1910
    Country: Congo (RDC)
  • Sample n°341 : reniform yellow block
    Minerals: CHALCEDONY (quartz) QUARTZ
    Year: 1910
    Country: Congo (RDC)
  • Sample n°406 : concretion within geode
    Minerals: CHALCEDONY (quartz) QUARTZ
    Year: 1910
    Country: Congo (RDC)
  • Sample n°532 : mixed debris
    Minerals: CHALCEDONY (quartz) QUARTZ
    Year: 1913
    Country: Congo (RDC)
  • Sample n°554 : stalactitic concretion
    Minerals: CHALCEDONY (quartz)
    Year: 1910
    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°560 : zoned block (pink, blue, yellow)
    Minerals: CHALCEDONY (quartz)
    Year: 1913
    Country: Congo (RDC)
  • Sample n°716 : chisel-shaped crystals (2 cm) in chalcedony geode
    Minerals: CALCITE CHALCEDONY (quartz) QUARTZ
    Year: 1912
    Country: Congo (RDC)
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