Mineralogy Database

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105 samples matching your criteria

  • Sample n°10079 : dull red prismatic quartz crystals and calcite crystals on dolerite
    Minerals: QUARTZ CHALCEDONY (quartz) CALCITE
    Year: 1963
    Country: Congo (RDC)
  • Sample n°10299 : olive-green block (5 cm)
    Minerals: CHALCEDONY (quartz)
    Year: 1963
    Country: Rwanda
  • Sample n°11144 : sample with metatorbernite, few meta-autunite crystals, smoky quartz
    Minerals: META-AUTUNITE METATORBERNITE CHALCEDONY (quartz) HEMATITE QUARTZ
    Year: 1966
    Country: France
  • Sample n°11164 : lava with white geodes
    Minerals: ZEOLITE CHALCEDONY (quartz)
    Year: 1966
    Country: Germany
  • Sample n°11168 : nodules and banded geodes with calcite core in red rock substrate
    Minerals: CHALCEDONY (quartz) CALCITE
    Year: 1966
    Country: Germany
  • Sample n°11453 : multicoloured plate of petrified wood (15 cm)
    Minerals: CHALCEDONY (quartz)
    Year:
    Country: USA
  • Sample n°11566 : red breccious block with mixture of copper silicates
    Minerals: SHATTUCKITE CHALCEDONY (quartz) MALACHITE PLANCHEITE
    Year: 1968
    Country: Congo (RDC)
  • Sample n°11658 : thick coating, with well-developed crystals along surface
    Minerals: QUARTZ CHALCEDONY (quartz)
    Year: 1967
    Country: Austria
  • Sample n°11724 : multicoloured breccious block (16 cm)
    Minerals: FLUORITE CHALCEDONY (quartz) QUARTZ
    Year: 1968
    Country: France
  • Sample n°11934 : reniform geodes with yellow and white bands (20 cm)
    Minerals: CHALCEDONY (quartz) QUARTZ
    Year: 1968
    Country: France
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