Blue Alkali Beryl
Toenail, 2.8 x 2.1 x 1.2 cm
Deo Darrah, Khash & Kuran Wa Munjan Districts, Badakhshan Province, Afghanistan

Similar in size and form to the previous specimen, this tabular, lustrous and translucent, alkali-rich beryl crystal has a deep sky blue color. It is also doubly terminated. These were originally thought to be Rosterite or Vorobyevite, but further analysis by Dr. Federico Pezzotta confirmed they are alkali-rich beryls.