Hackmanite 8mm Round - 15-16 Inch Golden but also for industrial purposes

but also for industrial purposes from watch gears and scientific instruments to sandpaper and other abrasives

It occurs in a great variety of shapes and colors

had Red Jasper inlaid in its hilt

double leaf spring construction with red vinyl handles

Tanzanite is both extremely rare and extremely attractive

Hackmanite 8mm Round - 15-16 Inch Golden but also for industrial purposesDiscovered 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.