Vintage Native American Silver Dry Creek Turquoise? Mans Ring Size 11.75

Nice old Native American ring, in great shape for age with nice patina. I don’t see any signatures or markings for metal content. Metal content unknown, most likely Sterling or nickel silver though. Also I’m not sure what kind of stone it is but it’s very beautiful. Please view photos for further details , left as found sold as is. Thanks for looking! Check out my shop for more great bargains