Mineralogy Database

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9 samples matching your criteria

  • Sample n°1868 : tetragonal pyramidal crystals and part of prismatic crystal (2-5 cm)
    Minerals: FERBERITE
    Year:
    Country: Rwanda
  • Sample n°1869 : black massive scoriaceous material in vein quartz (4 and 8 cm)
    Minerals: WOLFRAMITE QUARTZ
    Year:
    Country: Rwanda
  • Sample n°1870 : black crystals (2 cm) in grey vein quartz
    Minerals: FERBERITE QUARTZ
    Year:
    Country: Rwanda
  • Sample n°1875 : black anhedral crystals in quartz (2 and 4 cm)
    Minerals: FERBERITE
    Year:
    Country: Rwanda
  • Sample n°1885 : altered black crystal in vein quartz debris (5 cm), with hydrokenoesmoreite (var. ferritungstite)
    Minerals: FERBERITE HYDROKENOELSMOREITE ANTHOINITE QUARTZ
    Year:
    Country: Rwanda
  • Sample n°1990 : brown cassiterite crystals (3 cm), black tourmaline needles, pink prismatic beryl crystals (4 cm)
    Minerals: CASSITERITE TOURMALINE BERYL QUARTZ
    Year:
    Country: Congo (RDC)
  • Sample n°1994 : debris of black prismatic crystals (2 cm) on quartz
    Minerals: TOURMALINE
    Year:
    Country: Congo (RDC)
  • Sample n°1995 : prismatic crystals with two or three colours (1-5 cm), var. rubellite, var. achroite
    Minerals: ELBAITE
    Year:
    Country: Congo (RDC)
  • Sample n°5887 : geode with small crystals
    Minerals: QUARTZ
    Year: 1954
    Country: Angola
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