- Blue Alkali Beryl
- Toenail, 3.0 x 2.8 x 1.9 cm
- Deo Darrah, Khash & Kuran Wa Munjan Districts, Badakhshan Province, Afghanistan
A jackstraw cluster of tabular, lustrous and translucent sky blue beryl in crystals to 1.8 cm, is perched on massive albite. These were originally thought to be Rosterite or Vorobyevite, but further analysis by Dr. Federico Pezzotta confirmed they are alkali-rich beryls.