Navajo handcrafted dangle cluster earrings. They are set in solid sterling silver with genuine black onyx stones. The cluster design measures 2" in total length. They are light weight and easy to wear. Simple and elegant NAVAJO HANDCRAFTED SILVER & BLACK ONYX DANGLE EARRINGS Onyx is a chalcedony quartz that is mined in Brazil, India, California, and Uruguay. It has a fine texture and black color; however, some onyx also displays white bands or ribbons against a black or brown background and this variety is known as sardonyx. The name comes from the Greek word onyx.