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Blue Hackmanite 6mm 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.

a silicate of calcium and magnesium -- from western Canada

a mineral of the Quartz family

Sage Agate forms in volcanish ash

Ruby is a precious gemstone known for its deep red color

It is an aluminum borosilicate mixed with iron

while other impurities in the stone may create veining and rich patterns

No one knows what’s in the solution because this is a proprietary and guarded process

These strands were cut into beads with some of the material the Chalcedony was mined out of remaining

Later determined to be an iron meteorite

Because of its softness

the one you receive may look different from what is shown

After the glass has cooled