turquoise

Turquoise is a gemstone that is highly prized for its beautiful blue-green color and has been used for centuries in jewelry and decorative objects. It is a hydrous phosphate of copper and aluminum, and is found in arid regions where water and other minerals have leached into the ground and formed deposits.

A gem stone is a mineral, a rock or a petrified material that is cut or faceted and polished before it can be used in jewelry. Some of the most beautiful jewelry is made using semi-precious gem stones.