Malachite 12-17x16-21mm A Grade Small Free Form Cabochon Stone Type_Porcelain This stone is a combination

This stone is a combination of two very similar materials: Azurite is a deep blue mineral produced by weathered copper ore deposits

Turritella Agate’s rich brown and black colors are patterned with the fossilized remains of sea creatures millions of years old

it lightens because of further weathering and becomes Malachite

but rather a dark variety of Carnelian

An aluminum silicate mineral

Malachite 12-17x16-21mm A Grade Small Free Form Cabochon Stone Type_Porcelain This stone is a combinationMalachite is a copper carbonate with a bright green color and dark green banding. Usually found near copper deposits, it is formed through the combination of carbonated water, limestone and copper. Famous malachite mines in the Ural mountains of Russia once produced 20 to ton blocks of the stone, while today it is primarily mined in Africa. Malachite was used extensively as decoration in the palaces of Russian tsars and forms the columns of St. Isaacs