Feature Gems & Gemology, Spring 1986, Vol. 22, No. 1

A Gemological Study of Turquoise in China

Gem-quality turquoise is currently being mined in Hubei Province, China. The material ranges in color from light blue to bluish green; it usually occurs as nodules 1 to 5 cm in diameter, although much larger pieces have been found. For the most part, the gemological properties of this Chinese turquoise are similar to those of material from other localities; one specimen was found to approach end-member turquoise in chemical composition.