Mineralogy Database

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1547 samples matching your criteria

  • Sample n°6551 : black needles (1 cm) scattered in pegmatite
    Minerals: TOURMALINE
    Year:
    Country: Rwanda
  • Sample n°6552 : debris of stony prismatic crystal (8 cm)
    Minerals: BERYL
    Year:
    Country: Rwanda
  • Sample n°6553 : brown-purple block (7 cm)
    Minerals: HETEROSITE
    Year:
    Country: Rwanda
  • Sample n°6554 : joined stalactites (22 cm)
    Minerals: CALCITE
    Year:
    Country: Rwanda
  • Sample n°6555 : black cassiterite in vein quartz
    Minerals: CASSITERITE MICA QUARTZ
    Year:
    Country: Rwanda
  • Sample n°7218 : black massive block (20 cm)
    Minerals: FERBERITE
    Year:
    Country: Rwanda
  • Sample n°7233 : prismatic crystals with black cross (3 cm), var. chiastolite
    Minerals: ANDALUSITE
    Year:
    Country: Rwanda
  • Sample n°7924 : black crystals (4 cm) in micaceous pegmatite
    Minerals: SCHORL
    Year:
    Country: Rwanda
  • Sample n°7971 : black crystals and spots (1 cm) in quartz (20 cm)
    Minerals: CASSITERITE QUARTZ
    Year:
    Country: Rwanda
  • Sample n°7972 : block of mixed phosphates
    Minerals: ALLUAUDITE HETEROSITE FERRISICKLERITE
    Year:
    Country: Rwanda
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