Blue Alkali Beryl
Toenail, 3.1 x 2.5 x 1.2 cm
Deo Darrah, Khash & Kuran Wa Munjan Districts, Badakhshan Province, Afghanistan
This large, tabular, alkali-rich beryl crystal is lustrous and translucent with a superb deep sky blue color. It has excellent color on the edges, and the unusual bowed-in shape of these crystals at the midpoint. These were originally thought to be Rosterite or Vorobyevite, but further analysis by Dr. Federico Pezzotta confirmed they are alkali-rich beryls.
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