Black Spinel 4x6mm Faceted Rondelle - 15-16 Inch birthstone_chrysoprase this semi to precious variety

this semi to precious variety of quartz is found in many locations around the world

though it is referenced as a highly revered stone in much older Inuit tribal legends

in Karelia

Blue Apatite

Amethyst is a beautiful purple stone

Black Spinel 4x6mm Faceted Rondelle - 15-16 Inch birthstone_chrysoprase this semi to precious varietySpinel is a hard vitreous magnesium aluminum oxide, and comes in a range of other colors, but those varieties are transparent. Black Spinel not only has the dark color, but it is opaque as well, rendering its black especially deep and mysterious. Sometimes called the "Black Prince's Ruby" for its role in the English crown. It has been mistaken for ruby and sapphire at times, but can be distinguished by its structure and its lower relative hardness.