Mineralogy Database

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105 samples matching your criteria

  • Sample n°9728 : block (30 cm) of white pyramidal crystals
    Minerals: QUARTZ CHALCEDONY (quartz) OPAL
    Year:
    Country: Rwanda
  • Sample n°10062 : geode of clear prismatic crystals on massive chalcedony
    Minerals: QUARTZ CHALCEDONY (quartz)
    Year: 1964
    Country: Congo (RDC)
  • Sample n°10064 : red prismatic crystals (1-3 cm)
    Minerals: QUARTZ CHALCEDONY (quartz)
    Year: 1964
    Country: Congo (RDC)
  • Sample n°10065 : large plate of red prismatic crystals (1-2 cm)
    Minerals: QUARTZ CHALCEDONY (quartz)
    Year: 1964
    Country: Congo (RDC)
  • Sample n°10069 : geode of quartz crystals (5 mm), pistachio-green elongated epidote crystal
    Minerals: QUARTZ CHALCEDONY (quartz) EPIDOTE
    Year: 1964
    Country: Congo (RDC)
  • Sample n°10070 : red and purple veined block
    Minerals: CHALCEDONY (quartz)
    Year: 1964
    Country: Congo (RDC)
  • Sample n°10071 : geode of small black crystals
    Minerals: QUARTZ CHALCEDONY (quartz)
    Year: 1964
    Country: Congo (RDC)
  • Sample n°10072 : banded pink material on fibrous quartz
    Minerals: CHALCEDONY (quartz) QUARTZ
    Year: 1964
    Country: Congo (RDC)
  • Sample n°10074 : clear crystals (6 cm) on pink banded chalcedony
    Minerals: QUARTZ CHALCEDONY (quartz)
    Year: 1964
    Country: Congo (RDC)
  • Sample n°10076 : dull black prismatic quartz crystals (2 cm), mass of white calcite nodules, olive-coloured powder (epidote)
    Minerals: CALCITE CHALCEDONY (quartz) EPIDOTE QUARTZ
    Year: 1963
    Country: Congo (RDC)
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