Malachite 7mm Cube Table Cut A Grade - 15-16 Inch - CLEARANCE Shape_Faceted Cube Turquoise is an ancient gemstone

Turquoise is an ancient gemstone

It is mined in Peru

a silicate of calcium and magnesium -- from western Canada

Mica is heat-resistant and does not conduct electricity

The most highly regarded colors are the reds and pinks

Malachite 7mm Cube Table Cut A Grade - 15-16 Inch - CLEARANCE Shape_Faceted Cube Turquoise is an ancient gemstoneMalachite 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