Rare specimen of Cookeite spheres growing on Quartz crystals mined long time ago in Stand-on-Your-Head No. 1 mine, Arkansas, USA. The Quartzes are colorless, transparent flat plates. Above them grow small Cookeite balls with olive green color. Displays aesthetically all over 360 degree. In good condition – some small nicks. On acrylic base.

Superb rarity!