BIL 443 Oval stud earrings - Sonoran Gold Turquoise

Sonoran Blue Gold Canyon Turquoise is an interesting turquoise from Senora, Mexico, near Nogales, Arizona, and its neighbor: Nogales, Mexico, which is the northernmost point in all of Mexico. The series of mines bearing this name are on several sites contingent to the American border. Very little hard natural material has been mined here. Most has needed stabilizing to be useful. The high-grade natural material is a medium blue, with darker blue matrix, forming a "birds’ eye" pattern. This is usually accompanied by iron pyrite, giving it a similar look to a high-grade Morenci. The high-grade turquoise from this mine is rare and is considered both esoteric and valuable. Navajo handcrafted earrings. Set in solid sterling silver that has an antique satin finish giving the earrings a vintage look. The oval shaped high grade Sonoran gold turquoise is beautiful. Measuring 1/" x 3/8" they are medium sized for a stud earring. Sterling silver posts and backings are used.