Black Spinel 9x13mm Twisted Drop - 8 Inch Agate10mm Unakite is a granite composed

Unakite is a granite composed of pink Feldspar and Epidote

Thulite is the naturally occurring pink variety of the mineral Zoisite

with red vinyl handles

sometimes brecciated patterns

In rare and highly sought after specimens

Black Spinel 9x13mm Twisted Drop - 8 Inch Agate10mm Unakite is a granite composedSpinel 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.