Arizona is known to host 992 valid mineral species and no doubt more will be discovered in the future.
William Ascarza Special to the Arizona Daily Star Minerals have always been held in high regard in Arizona's history, having been the driving force for settlement and economic expansion throughout the region.
Below are some select sites in Arizona that have produced a number of prized mineral specimens. The history of the mines is as rich and varied as the minerals themselves. Located in the Eureka Mining district in Yavapai County, the Bagdad Mine has been a copper producer since its discovery in the early 1880s. Prospectors were drawn by the red and brown iron stain on exposed granite porphyry rocks that saw profit off of the widespread mineralization. The mine was operated in 1906 with limited success by the Giroux Syndicate affiliated with J.L. Giroux, former general manager of Sen. William A. Clark’s Colusa Mine in Butte, Montana.
The San Manuel disseminated copper deposit is credited as having once been the largest underground copper mining operation in the world. Production occurred from 1956 until the mine closed in 2003. Total production of copper and molybdenum was 4,651,600 short tons and 73,200 short tons. Notable minerals include atacamite, copper, gold and molybdenite.
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