Hackmanite 6mm Round - 15-16 Inch White Buffalo The stone was discovered in

The stone was discovered in 2009 by a man in Mexico as a man chasing his goat up a mountain caught sight of an unusual rock

If you are a collector of cool rocks

The stone was first discovered in Sweden in the 1830s

It is not a mineral

Like all obsidian

Hackmanite 6mm Round - 15-16 Inch White Buffalo The stone was discovered inDiscovered in Greenland in the late 1890's, hackmanite is named for Finnish geologist Victor Hackman. It is a rare occurrence to find gem grade hackmanite; at best, most crystals are translucent. Hackmanite is the light pink to pale violet variety of sodalite. It is a particularly unusual gem because it exhibits a special optical property known as tenebrescence, a type of reversible photochromism. Hackmanite is very reactive under UV light.