Black Spinel 4x6mm Faceted Rondelle - 15-16 Inch Spinel The first rough material was

The first rough material was offered for sale in Tucson in 2011 and is now regularly mined at the remote deposit site in Sonora

Crystal Quartz is a naturally occurring clear and colorless Quartz

Peter the Great set up Russia's first spa in Karelia to make use of the water purifying properties of shungite

This prompted an alternative name for the gemstone: Princess Blue

Madre de Cacao is a very hard tropical wood with a visible grain

Black Spinel 4x6mm Faceted Rondelle - 15-16 Inch Spinel The first rough material wasSpinel 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.