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NAVAJO HANDCRAFTED BLACK ONYX STATEMENT RING
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.
Repoussé or repoussage refer to a metalworking technique in which a malleable metal is shaped by hammering from the reverse side to create a design in low relief. Chasing, chased work, or embossing refer to a similar technique, in which the piece is hammered on the front side, sinking the metal.