Black Spinel 5mm Round - 15-16 Inch HPS_06012023 ” the other being Nephrite

” the other being Nephrite

it was thought to have fallen approximately 800

Made to resemble Diamonds

but those varieties are transparent

as well as its iridescent sparkle

Black Spinel 5mm Round - 15-16 Inch HPS_06012023 ” the other being NephriteSpinel 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.