Blue Hackmanite 8mm Round - 15-16 Inch 14-Mar It occurs with wave-like bands

It occurs with wave-like bands of charcoal gray

peach or light red and may also include colorless Quartz

Its needle to like inclusions of hematite are iridescent red

including to ward off illness and the Plague

the month the ancient Romans dedicated to Neptune

Blue Hackmanite 8mm Round - 15-16 Inch 14-Mar It occurs with wave-like bandsDiscovered 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.