White River Turquoise from China. All Natural and old stock. This material that I have was imported to the United States in the very early 1990s. Turquoise from China was first introduced to the US in August of 1987. A man by the name of Daniel Lopacki and a partner were overseas and had been introduced to the famous Cloud Mountain Turquoise Mine and they were hooked! The ethereal look of glacier blue juxtaposed with contrasting black and white is like nothing else!