History and application:
Ancient
A semi-precious stone with a beautiful sky blue color. Few types of turquoise minerals are suitable for pigment production. Turquoise is a blue-green mineral that is a hydrous phosphate of copper and aluminum with the chemical formula CuAl6 (PO4) 4 (OH) 8-4H2O.

Application:
Acrylic paint, Tempera, Watercolor / Gouache