Morenci Mine Turquoise Ring in Sterling Silver Navajo Size 7

Vintage sterling silver ring set with deep blue Morenci Mine turquoise. Size 7. The stone has black matrix with pyrite. Ring has small hand dropped raindrops and twisted wire rope. Face measures 1 1/8" by a little over 1/2" wide. Shank is hand formed. Weight: 5 grams. Really nice stone that is natural.