Black Spinel 3mm Faceted Round - 15-16 Inch Mixed Stone In this strand

In this strand

Jade has been used for tens of thousands of years

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

Lava is rock from the molten center of the earth

These reproductions are designed in the traditional color

Black Spinel 3mm Faceted Round - 15-16 Inch Mixed Stone In this strandSpinel 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.