| | Book (edition) | Co\·er photo: \\ 7 ulfenite, Rowley Mine, Maricopa County, 4 cm high specimen, Evan and Melissa Jones Collection...who differ only in the major element present: Ca, K, Mg, Na, or Sr. Older references are unaware of the...gemandmineralmuseum.arizona.edu) is located in the old Pima County Courthouse building at 115 North Church Avenue...on the market. The mines at Bisbee, in Cochise County, have produced large quantities of gem-quality...mineral stamp issued in 1992. At Morenci, in Greenlee County, gem-quality azurite was also commercially recovered |
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Big Rock Quarry, Granite Mountain area, Little Rock, Pulaski County, Arkansas, USA