Turquoise 12mm Disc Green - 15-16 Inch Aquamarine It can be colorless

It can be colorless

It was originally named for the visible inclusions of the mineral Cacoxenite

Sardonyx is sometimes treated to bring out its reddish tones

Usually found near copper deposits

it is a form of hydrated amorphous silica

Turquoise 12mm Disc Green - 15-16 Inch Aquamarine It can be colorlessTurquoise 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