Hackmanite sourced from Afghanistan. These are ultra saturated blue/purple stones that glow ready under UV. Hackmanite is sulfur bearing sodalite that exhibits tenebrescence!
Tenebrescence is the ability of a mineral to change color when exposed to light, in this case a UV light. The phenomena will reverse itself after a few minutes to a few hours and can be repeated again and again.
22 pieces / 50.52 total grams
Estimated Value: $135 - $145
