Mineralogy Database

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1547 samples matching your criteria

  • Sample n°9551 : reddish block with conchoidal fracture (22 cm)
    Minerals: CHALCEDONY (quartz) OPAL QUARTZ
    Year:
    Country: Rwanda
  • Sample n°9552 : pale green prismatic crystals (1-3 cm) in altered greisen
    Minerals: APATITE
    Year:
    Country: Rwanda
  • Sample n°9555 : white block (25 cm)
    Minerals: AMBLYGONITE
    Year:
    Country: Rwanda
  • Sample n°9556 : white block (15 cm)
    Minerals: MONTEBRASITE
    Year:
    Country: Rwanda
  • Sample n°9558 : group of white prismatic crystals (7-12 cm)
    Minerals: QUARTZ
    Year: 1962
    Country: Rwanda
  • Sample n°9560 : group of clear prismatic crystals (10 cm)
    Minerals: QUARTZ
    Year:
    Country: Rwanda
  • Sample n°9561 : white block (5 cm)
    Minerals: AMBLYGONITE
    Year:
    Country: Rwanda
  • Sample n°9569 : debris of white-pink stony prismatic crystals (5 cm)
    Minerals: BERYL
    Year:
    Country: Rwanda
  • Sample n°9574 : clear prismatic crystals (5 cm)
    Minerals: QUARTZ
    Year:
    Country: Rwanda
  • Sample n°9575 : white clayey blocks (13 cm)
    Minerals: KAOLINITE
    Year:
    Country: Rwanda
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