Turquoise 6x8-8x10mm Rough Nugget - 15-16 Inch New November 2021 Malachite is a copper carbonate

Malachite is a copper carbonate with a bright green color and dark green banding

and variation of the amount of iron in the stone creates a color range from reddish purple to deep violet to light lilac

Sapphires are precious gemstones

Selenite is a crystal formed from the mineral gypsum

Turquoise 6x8-8x10mm Rough Nugget - 15-16 Inch New November 2021 Malachite is a copper carbonateTurquoise is an ancient gemstone, one of the first known to man. Known to Egyptian and Aztec cultures thousands of years ago, Turquoise is now mined all over the world. Turquoise is formed when water passes through aluminous rock where copper and other minerals are present. The deposits within the rock become Turquoise after a chemical reaction occurs over long periods of time. Natural Turquoise may be cut and polished, but will not be chemically