Turquoise is one of the rare gems in the world. It is aquamarine and was a tribute to the royal families in the Qing Dynasty. Beijing Palace Museum alone collects about 10,000 turquoises. In foreign ...
Zhushan county is a land of turquoise in China with total turquoise reserves of about 50,000 tons, including 35,000 tons of industrial reserves, accounting for 70 percent of world’s total and ranking ...
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