Black Spinel 4x8mm Faceted Rondelle - 15-16 Inch Carved bright red

bright red

The mineral is heavy

typically of brown or black

A cryptocrystalline Chalcedony

It is most often found in the Baltic region

Black Spinel 4x8mm Faceted Rondelle - 15-16 Inch Carved bright redSpinel 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.