Hackmanite 6mm Round - 15-16 Inch Origin_Africa Gamma ray irradiation

Gamma ray irradiation

and features dark manganese dendrites throughout

this gemstone in its polished state looks like what it would be like to capture smoke in a stone -- bottomless black mixed with white wisps

double leaf spring construction with red vinyl handles

Hackmanite 6mm Round - 15-16 Inch Origin_Africa Gamma ray irradiationDiscovered 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.