These vintage Zuni half-hoop earrings are flush set inlaid with sky-blue turquoise. Clip-on style earrings for non-pierced ears. Good vintage condition. Unsigned and unmarked. The earrings measure 1/4 inch wide by 3/4 inch long and weigh 2.3 grams each. circa 1970's.
As is the case more often that not with the earlier Native American jewelry, this piece is not marked for silver content or maker. However, I guarantee that it is coin silver (.900/90%) or sterling silver (.925/92.5%). When I test jewelry for silver content, I never drop the testing solution directly on the piece of jewelry since the acid could damage the piece. Rather I rub the piece against a testing stone and drop the acid on the testing stone.