VINTAGE NAVAJO PETRIFIED WOOD STERLING CUFF. NEW PRICE!

I bought this unique Southwestern CUFF when I was in my 20's ,I'm now in my 70's. It was old when I bought it, so I don't know how old it is. I was told it was petrified wood, but later when I had it tested for silver, they suggested maybe a type of picture agate or obsidian. It is heavy and solid , so not much bend to it. Made for a smaller wrist, 6". The stone is still smooth and shiny, and has the typical rope setting. No markings. I received many compliments wearing it over the years, being different from the turquoise ones. Very comfortable to wear, does not slide around.