Blue Hackmanite 6mm Round - 15-16 Inch featured_08012024 giving some rubies a slightly

giving some rubies a slightly brownish or purplish tint

Topaz is a rare silicate mineral and obtains much of its popularity from its beautiful colors and its status as a birthstone

Since this is a natural stone

one of the first fluorescent minerals ever studied

Carnelian is a glassy

Blue Hackmanite 6mm Round - 15-16 Inch featured_08012024 giving some rubies a slightlyDiscovered 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.