Zuni Turquoise and Silver, South-West American Indian hand-work of the late 1970s.
The three oval Turquoise, natural gemstones of good natural Turquoise blue, could have been sourced from an Arizona mine, or a New Mexico mine; the Zuni artesans were known to source their Turquoise from the fabled Sleeping Beauty Turquoise mine, appreciating the consistency of good blue colour in material from that mine, and the fact that it tended to be harder, more dense. Certainly, the Sleeping Beauty mine, though now closed to commercial operations, was, back in the 1970s, a fully operating and productive Turquoise mine.

Originally, the above hand-worked Zuni Turquoise and Silver trapezoid was one of a number in a bracelet that had suffered damage and was one of only a couple such links left whole; its hinges removed and a nice solid appropriate bail created for it in Sydney, and we have an interesting, wearable example of Zuni silver-work of half a century ago.