Mineralogy Database

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853 samples matching your criteria

  • Sample n°4587 : prismatic crystals in geode (6 cm)
    Minerals: QUARTZ
    Year: 1954
    Country: Congo (RDC)
  • Sample n°4588 : group of crystals of hyacinth quartz (2 cm)
    Minerals: QUARTZ
    Year: 1954
    Country: Congo (RDC)
  • Sample n°4589 : purplish and grey prismatic crystals (3 cm)
    Minerals: QUARTZ AMETHYST (quartz)
    Year: 1954
    Country: Congo (RDC)
  • Sample n°4590 : plate of hyacinth quartz crystals (4 cm)
    Minerals: QUARTZ
    Year: 1954
    Country: Congo (RDC)
  • Sample n°4591 : crust of red prismatic crystals (1-5 cm)
    Minerals: QUARTZ
    Year: 1954
    Country: Congo (RDC)
  • Sample n°4592 : small crystals
    Minerals: QUARTZ
    Year: 1954
    Country: Kenya
  • Sample n°4594 : dark prismatic crystal
    Minerals: QUARTZ
    Year: 1954
    Country: Rwanda
  • Sample n°4596 : black, blue and green debris
    Minerals: OPAL CHALCEDONY (quartz) QUARTZ
    Year:
    Country: Congo (RDC)
  • Sample n°4598 : sawn pink blocks with concentric structure
    Minerals: AGATE (quartz) CHALCEDONY (quartz)
    Year: 1954
    Country: Congo (RDC)
  • Sample n°4599 : zoned concretion
    Minerals: AGATE (quartz)
    Year: 1954
    Country: Angola
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