Hackmanite 8mm Round - 15-16 InchDiscovered 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.

Specialists soak the stones in resin or liquid plastic to help harden them

spirals or other shapes to harden

It is believed by some to improve memory and increase analytical skills

which can be yellow

Iron Zebra Jasper displays streaks or stripes of colors ranging from dark

including lazurite

Amazonite is a member of the feldspar family

Blue Tiger Eye is a naturally occurring dark stone with chatoyant layers that create a flash which seems to emanate from within the stone as they catch the light

It occurs in a great variety of shapes and colors

A natural blue form of calcium sulfate

Dispel Lethargy

who first discovered the stone in Southern California in 1868