Blue Hackmanite 10mm Round - 15-16 Inch Gray Its name derives from the

Its name derives from the Sinhalese word “turamali

The stone's composition remains somewhat ambiguous

Red Agate is a form of Chalcedony

Beads Per Strand: 40

Blood Quartz is a clear to milky to white silicon dioxide mineral

Blue Hackmanite 10mm Round - 15-16 Inch Gray Its name derives from theDiscovered 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.