Black Spinel 4x6mm Faceted Rondelle - 15-16 Inch (dyed) features intricate light brown patterns

features intricate light brown patterns on dark brown stones

Hematite is black to steel to gray or silver to gray

Other names include: quickstick

Naturally occurring in hues of blue-green to green with spots and streaks of red

Black Spinel 4x6mm Faceted Rondelle - 15-16 Inch (dyed) features intricate light brown patternsSpinel 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.