Black Spinel 8mm Faceted Round - 15-16 Inch Pink (Synthetic) 10X30mm often occurring with inclusions of

often occurring with inclusions of white

Sardonyx has a Sard base

Sometimes called the "Black Prince's Ruby" for its role in the English crown

and veins within the tan

this unique Madagascar Agate rock specimen is perfect for gift giving or keep for yourself

Black Spinel 8mm Faceted Round - 15-16 Inch Pink (Synthetic) 10X30mm often occurring with inclusions ofSpinel 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.