Gems & Gemology, Spring 1986, Vol. 22, No. 1
The Sapphires of Mingxi, Fujian Province, China
Alice S. Keller and Peter C. Keller
Blue sapphires are currently being mined on an exploratory basis from alluvial deposits at the Lindi mine, near the town of Mingxi in Fujian Province. The geology and occurrence of the sapphires appears to be similar to that of the gem corundum from Australia, Thailand, and Kampuchea (Cambodia). For the most part, the rough sapphires are greenish blue to dark blue in color and average approximately 2 ct; their gemological properties are also similar to those of sapphires from comparable geologic environments.