Turquoise

Turquoise Turkey StoneTurchois (Latin)Gyu  གཡུ་ (Tibet)Lu Song Shi (TCM)Rajvart, Turkhaja, Viraja, Pirojaka (Ayurveda)Firoza (Unani) TurchoisHortus sanitatis, 1491 Turquoise (Arizona)(Photo by Rob Lavinsky, iRocks.com) Minerological name: Turquoise  CuAl6(PO4)4(OH)8·4H2O Hydrated Copper and Aluminium Phosphate (CuO 9.78%; Al2O3 37.6%; P2O5 34.9%; H2O 17.7%).Copper is responsible for its Green color, although Iron is said to contribute also.Dark blue Turquoise…