Some have reddish brown webbed matrix. They sure look like high grade Bisbee turquoise to me, but please draw your own conclusions. The gemstones are snug in the bezels with no cracks or chips.
The silver has a rich, old silver patina. The buckle is unsigned but attributed to Horace Iule d.
1978, one of the first master Zumi artists. The buckle is 2 1/8" x 1 3/4" and will carry a belt up to 3/4.It weighs a sturdy 33 grams. Items are enlarged to show detail. Coin used for size reference only.
I leave patina intact so you can decide to polish or not. Any description or mention of type of turquoise is my best assessment, but not a fact, since I cannot know for sure, and to err is human. Please examine the photos and draw your own conclusions. I value polite feedback if I have made an error. There is always more to learn.If happy, please leave 5 star feedback. Please see my other listings. HORACE IULE Vintage Sand Cast Sterling Silver Bisbee Turquoise Buckle Zuni" is in sale since Thursday, March 21, 2019. This item is in the category "Jewelry & Watches\Ethnic, Regional & Tribal\Native American\Other Native American Jewelry". The seller is "turquoise_cache" and is located in Littleton, Colorado. This item can be shipped to United States.