About the mine: Nacozari sounds like an Asian name, but it is actually a mine in Sonora, Mexico. The mine is located south of the Bisbee, Arizona mine in the same mountain range.  Nacozari turquoise can be found in bright sky blue and deep navy blue colors. Nacozari is fast becoming highly collectible as it has become increasingly impossible to get. Update September 2011: The Nacozari mine is closed. Nacozari turquoise is very hard to locate and highly collectible at the present time.