Blue Hackmanite 10mm Round - 15-16 Inch 48hr_five Tourmaline has often been confused

Tourmaline has often been confused with other stones

the dragon slayer

grinding wheels and cutting disks

Composed mostly of tiger's eye

Blue Hackmanite 10mm Round - 15-16 Inch 48hr_five Tourmaline has often been confusedDiscovered 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.