Malachite 5x10-20mm Top Drill Teeth - 15-16 Inch Hexagon The presence of Manganese within

The presence of Manganese within the stone produces the purple hue

brown and orange

Carnelian is a glassy

a 19th-century German professor of chemistry and mineralogy

Opalite is the trade name for man to made glass treated to exhibit the internal flashes of true Opals in translucent samples

Malachite 5x10-20mm Top Drill Teeth - 15-16 Inch Hexagon The presence of Manganese withinMalachite 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