Blue Hackmanite 6mm Round - 15-16 Inch 8x10 To find out more about

To find out more about the process

It sometimes features dark brown to black dendritic inclusions that branch like tiny tree limbs through the stone

Its colors include burnt red

Later determined to be an iron meteorite

this unique Madagascar Agate rock specimen is perfect for gift giving or keep for yourself

Blue Hackmanite 6mm Round - 15-16 Inch 8x10 To find out more aboutDiscovered 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.