Hackmanite Cabochon sourced and organically cut in Mogok, Myanmar. Grey stone turns to deep grape purple under UV light! This material is known for having strong tenebrescence. Check out our UV flashlights to feel like a wizard too!
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.