Black Spinel 9x13mm Twisted Drop - 8 Inch Peru and brown as well as

and brown as well as pink

from pastel to bright to dark

and beads per strand counts may vary slightly from what is listed

Botswana Agate displays highly defined parallel banding

Black Spinel 9x13mm Twisted Drop - 8 Inch Peru and brown as well asSpinel 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.