Mineralogy Database

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1097 samples matching your criteria

  • Sample n°4576 : double-terminated crystal
    Minerals: QUARTZ
    Year: 1954
    Country: Rwanda
  • Sample n°9539 : complex coating
    Minerals: OPAL QUARTZ
    Year:
    Country: Rwanda
  • Sample n°9528 : group of large crystals, with greyish outer layer
    Minerals: QUARTZ
    Year:
    Country: Rwanda
  • Sample n°10401 : smoky quartz
    Minerals: QUARTZ
    Year:
    Country: Rwanda
  • Sample n°10349 : large single crystal
    Minerals: QUARTZ
    Year:
    Country: Rwanda
  • Sample n°15984 : plate of smoky quartz crystals
    Minerals: QUARTZ
    Year:
    Country: Rwanda
  • Sample n°18535 : crystal with dull exterior
    Minerals: QUARTZ
    Year:
    Country: Rwanda
  • Sample n°18536 : thick layered crust, grading to amethyst
    Minerals: QUARTZ
    Year:
    Country: Rwanda
  • Sample n°18573 : quartz-cemented block, with orange rhabdophane coatings
    Minerals: BASTNASITE QUARTZ RHABDOPHANE-(Ce)
    Year:
    Country: Burundi
  • Sample n°10067 : thick coatings
    Minerals: QUARTZ
    Year:
    Country: Congo (RDC)
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