Black Spinel 15mm Pinwheel - 8 Inch 5pf7072026 Gem Silica is the rarest

Gem Silica is the rarest and highest form of Chrysocolla

where the stones are thought to have been originally found

At that time yellowish gems were called "topaz" in many parts of the world

consisting of opaque rust-red glass with tiny flecks of glittering copper suspended within it

which dramatically complement the blue in irregular

Black Spinel 15mm Pinwheel - 8 Inch 5pf7072026 Gem Silica is the rarestSpinel 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.