erein lies the enduring fame of Bisbee. There are at least a dozen copper deposits worldwide whose metal production has or will exceed that of the Warren Mining District in and around Bisbee, but only one other mine can claim such an abundance of remarkably fine specimens. Specimens from Bisbee are among the finest in the entire world, and are proudly counted among the prizes of such renowned collections as the National Gem & Mineral Collection housed in the new Janet Annenberg Hooker Hall of Geology, Gems, and Minerals inside the National Museum of Natural History, the Harvard University Mineralogical and Geological Museum, the Collection of the Arizona-Sonora Desert Museum, and the University of Arizona Mineral Museum.
During the years that Bisbee sent forth its impressive flow of minerals, more than 30 separate mines were involved. However, as a fine source of minerals, Bisbee's caves were exceptional. As described in 1904, "the walls of these caverns were covered with velvety moss-green malachite and sparkled with the blue crystals of azurite, while from the roofs hung translucent stalactitic draperies of calcite, delicately banded and tinted with the salts of copper."
The Bisbee mines have produced in excess of 300 distinct mineral species. Of these, paramelaconite, shattuckite, chalcoalumite, graemite, kiddcreekite, henryite and spangolite were originally described from Bisbee.
Unfortunately, it has been fully 20 years since the mines of Bisbee ceased production, and 10 years since the pumps in the Junction Shaft were stopped, allowing the mines to slowly flood. Today, few, if any, of the areas that could yield further information on Bisbee's mineralogical heritage are accessible. There are, however, a great many specimens preserved in collections that, upon examination, might provide a more complete understanding of Bisbee's wonderful mineral legacy - thus the Bisbee Mineral Hall.