Malachite 7x9-8x10mm Pebble - 15-16-Inch 20210729 or x-ray analysis

or x-ray analysis

The stone ranges in hue from green

[Use Fire Opal description

Garden Quartz

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

Malachite 7x9-8x10mm Pebble - 15-16-Inch 20210729 or x-ray analysisMalachite 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