Mineralogy Database

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1091 samples matching your criteria

  • Sample n°487 : pseudomorphism of calcite in veins
    Minerals: QUARTZ
    Year: 1922
    Country: Congo (RDC)
  • Sample n°491 : fibrous, white
    Minerals: QUARTZ
    Year: 1922
    Country: Congo (RDC)
  • Sample n°500 : block with veins
    Minerals: QUARTZ
    Year: 1922
    Country: Congo (RDC)
  • Sample n°515 : clear prism (6 cm), orange crystal (10 cm)
    Minerals: QUARTZ
    Year:
    Country: Congo (RDC)
  • Sample n°532 : mixed debris
    Minerals: CHALCEDONY (quartz) QUARTZ
    Year: 1913
    Country: Congo (RDC)
  • Sample n°536 : black crystals in quartz fragments
    Minerals: TOURMALINE QUARTZ
    Year: 1913
    Country: Congo (RDC)
  • Sample n°555 : blocks with pink and green veins, var chrysoprase
    Minerals: QUARTZ
    Year: 1913
    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°572 : crust of clear prismatic crystals
    Minerals: QUARTZ
    Year: 1913
    Country: Angola
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