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Description

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.

but rather a speckled teal Jasper found in Africa and often treated to simulate the beautiful blue to green associated with true Turquoise

As a Serpenti

crystallized and infused in Quartz

Blue Green Quartz

Shungite is a black

destruction

black with snowflake patterns

as well as for brake shoes

Labradorite is usually gray-green

It is highly regarded for its beautiful blue color flecked with gold inclusions of pyrite

The most common members of the feldspar group are the plagioclase feldspars and the alkali feldspars

made up of of smaller crystals