Mineralogy Database

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282 samples matching your criteria

  • Sample n°2023 : black spots and dull shapeless crystals in pegmatite
    Minerals: BERYL TOURMALINE
    Year:
    Country: Rwanda
  • Sample n°2335 : schist fragments with abundant black needles (1 cm)
    Minerals: TOURMALINE
    Year:
    Country: Congo (RDC)
  • Sample n°2369 : black vein (1 cm) in quartzite
    Minerals: CASSITERITE TOURMALINE
    Year:
    Country: Congo (RDC)
  • Sample n°2371 : association in large block of schist
    Minerals: TOURMALINE QUARTZ
    Year:
    Country: Congo (RDC)
  • Sample n°2386 : rust-coloured to brown crystals and black spots (tourmaline) in quartzite
    Minerals: CASSITERITE TOURMALINE MUSCOVITE QUARTZ
    Year:
    Country: Congo (RDC)
  • Sample n°2388 : massive tourmalinite block with brown cassiterite crystals (cm)
    Minerals: CASSITERITE TOURMALINE
    Year:
    Country: Congo (RDC)
  • Sample n°2392 : micaceous schist with black punctuations, contact with quartz vein
    Minerals: CASSITERITE TOURMALINE
    Year:
    Country: Congo (RDC)
  • Sample n°2441 : debris
    Minerals: TOURMALINE
    Year: 1937
    Country: Congo (RDC)
  • Sample n°2442 : debris of crystals
    Minerals: TOURMALINE
    Year: 1937
    Country: Congo (RDC)
  • Sample n°2493 : large lens of mineralised quartz
    Minerals: CASSITERITE MICA QUARTZ TOURMALINE
    Year:
    Country: Congo (RDC)
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