The experts familiar with the Crow Springs Mine advise to buy it while it's available. This mine near Tonopah, Nevada produces a beautiful blue-green mix turquoise with golden brown matrix. It forms in the same host rock as Pilot Mountain, Ajax, and Royston turquoise. The unique design of this great pendant by famed Navajo artist, Martha Silversmith, shows off the dazzling stone with a twisted rope bezel accented with silver drops. The stone and surrounding bezel measures 1" by 5/8" (NOT including the bail). The 1/4" bail has a 7mm opening. Crafted entirely of sterling silver. Hallmarked "M. Silversmith" and "sterling" on the back.