Mineralogy Database

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105 samples matching your criteria

  • Sample n°6539 : massive pink block
    Minerals: AGATE (quartz) CHALCEDONY (quartz)
    Year:
    Country: Congo (RDC)
  • Sample n°6816 : brown crystals in breccious quartz
    Minerals: EULYTITE CHALCEDONY (quartz) QUARTZ
    Year: 1954
    Country: Germany
  • Sample n°6934 : blue plates (clinoclase) and green tabular crystals (tyrolite) on block of copper minerals (6 cm)
    Minerals: CLINOCLASE TYROLITE AZURITE CHALCEDONY (quartz) MALACHITE QUARTZ
    Year: 1954
    Country: United Kingdom
  • Sample n°7109 : geodic rock
    Minerals: CHALCEDONY (quartz)
    Year:
    Country: Congo (RDC)
  • Sample n°8642 : white and beige fragments
    Minerals: AGATE (quartz) CHALCEDONY (quartz)
    Year: 1949
    Country: Congo (RDC)
  • Sample n°8801 : white debris (4 cm)
    Minerals: OPAL CHALCEDONY (quartz) QUARTZ
    Year:
    Country: Rwanda
  • Sample n°9540.1 : blue geodic block (7 cm)
    Minerals: CHALCEDONY (quartz) OPAL
    Year:
    Country: Rwanda
  • Sample n°9542 : purple block (15 cm), coloured by iron oxides
    Minerals: CHALCEDONY (quartz) OPAL
    Year:
    Country: Rwanda
  • Sample n°9547 : clear prismatic crystal with striated crystal faces (30 cm)
    Minerals: QUARTZ CHALCEDONY (quartz)
    Year:
    Country: Rwanda
  • Sample n°9551 : reddish block with conchoidal fracture (22 cm)
    Minerals: CHALCEDONY (quartz) OPAL QUARTZ
    Year:
    Country: Rwanda
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