- Datolite, Quartz
- Cabinet, 9.6 x 7.5 x 3.4 cm
- Bor Pit (Boron Pit; Bor Quarry), Dal'negorsk B deposit, Dal'negorsk (Dalnegorsk; Tetyukhe; Tjetjuche; Tetjuche), Primorskiy Kray, Far-Eastern Region, Russia
Exceptional cluster of sharp and partially gemmy Datolite crystals up to an amazing 2.5 cm on edge. The Datolite begins as a massive translucent plate, grading into well-formed crystal faces along the gemmy surface. The color is a fine mint green, and the luster is absolutely first-rate. The surface is also populated with numerous terminated quartz crystals up to 1 cm.