Let's Talk Turquoise

Castle Dome/Pinto Valley Mines

Castle Dome (1943) and Pinto Valley (1972) are located five to eight miles west of Miami in Gila County, along the south slopes of the Porphyry Mountains. Large quantities of copper and turquoise have been produced from these areas. Many old-time lapidaries did not like to cut this turquoise because it had so many fractures in its structure, which might have been brought about by the blasting techniques that were used when it was mined.

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