Description
You will receive one lot of beautiful, high grade rough purple and blue hackmanite crystals. Each lot is 28 to 32 grams, with 5 to 7 pieces per lot. Some pieces have significant color change and others are not as strong.
UV reactive, orange/pink under 365nm long wave UV. Tenebrescence after UV exposure.
Hackmanite, a fascinating variety of the mineral sodalite, exhibits a rare optical phenomenon known as photochromism, where it changes color when exposed to light sources. This reversible behavior is particularly notable under ultraviolet light, where hackmanite can transition from a pale color to vibrant hues, and then gradually revert back to its original state in the absence of UV radiation.
365 nm long wave UV lamp used in photos. Black lights may not give the best results. We do offer a few UV lamps at various prices.
Location: Badakhshan, Afghanistan
Measurements are as accurate as possible but due to the nature of some specimens may not be exact.