Black Spinel 15mm Pinwheel - 8 Inch Stone Type_Beryl Malachite was used extensively as

Malachite was used extensively as decoration in the palaces of Russian tsars and forms the columns of St

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

which takes millions of years

an opaque silicon dioxide mineral and form of microcrystalline Chalcedony

Black Spinel 15mm Pinwheel - 8 Inch Stone Type_Beryl Malachite was used extensively 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.