Blue Hackmanite 10mm Round - 15-16 Inch rqtz-spe-str It is frequently fluorescent under

It is frequently fluorescent under ultraviolet light

also known as Calligraphy Stone or Miriam Stone

Yellow Jasper is a golden brown stone with patterns that appear strikingly similar to wood grain

the resulting rock is dark gray to deep black in color and riddled with pits and holes where air was trapped in the stone

the most famous sapphire color

Blue Hackmanite 10mm Round - 15-16 Inch rqtz-spe-str It is frequently fluorescent underDiscovered 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.