Mineralogy Database

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4 samples matching your criteria

  • Sample n°10312 : debris of brown translucent crystals
    Minerals: CASSITERITE
    Year:
    Country: Rwanda
  • Sample n°10314 : black crystals in quartzite (12 cm), graphic texture
    Minerals: TOURMALINE MUSCOVITE
    Year:
    Country: Rwanda
  • Sample n°10324 : debris (2-6 cm)
    Minerals: CASSITERITE
    Year:
    Country: Rwanda
  • Sample n°12049 : colourless to yellowish glass-like opal on substrate, bright green fluorescence
    Minerals: OPAL
    Year:
    Country: Rwanda
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