Blue Hackmanite 6mm Round - 15-16 Inch Picture Famous malachite mines in the

Famous malachite mines in the Ural mountains of Russia once produced 20 to ton blocks of the stone

magnesium and other metals that give it its color

All gemstones are fascinating and special

as waters loosen and decompose the organic elements and replace them with silicate substances

Preservation is enabled by a lack of oxygen

Blue Hackmanite 6mm Round - 15-16 Inch Picture Famous malachite mines in 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.