Sodalite (var Hackmanite) (highly fluorscent and tenebrescent)

Item Description

These specimens are certainly some of the finest and largest Hackmanites in the world. Not only are they beautiful in every day lighting, showing various shades of blue, pink and purple, but when they are just as impressive when exposed to ultra-violet light. This specimen features a sharp, lustrous, rich pinkish-purple color crystal group of Hackmanite with minor Winchite on matrix. The crystal group has well defined, lustrous faces and though it is not complete all the way around, it is in very good condition. Many Hackmanites from Afghanistan show highly pitted or dull faces on the crystals, but this one is certainly in the upper ranks for quality. Lastly, as you can see in the photos, this piece is strongly fluorescent showing an intense salmon pink color under LW UV light (the pictures shows MORE fluorescence than in person) and a bluish-white color under SW UV light. The piece is also incredibly phosfluorescent showing a powder-blue shade and the crystal itself will actually turn a darker royal purple color when viewed in daylight after being exposed to UV light. The crystal will eventually return to it's normal pinkish-purple color after a few hours. This phenomenon is known as tenebrescence. The process of "changing" the color of the crystal is 100% repeatable, and in no way permanently affects the specimen. Valued at $1250.