Blue Hackmanite 8mm Round - 15-16 Inch 14-Mar the month the ancient Romans

the month the ancient Romans dedicated to Neptune

meaning it forms by replacing another mineral’s crystal structure atom by atom with its own crystal structure

including to ward off illness and the Plague

Its needle to like inclusions of hematite are iridescent red

It occurs with wave-like bands of charcoal gray

Blue Hackmanite 8mm Round - 15-16 Inch 14-Mar the month the ancient RomansDiscovered 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.