Black Sardonyx Gemstone Beads

These black sardonyx beads are a muted, neutral mix of black, brown, and white. The intricate banding pattern of this natural agate creates a lovely, interesting texture.

Sardonyx is a variety of agate that is composed of straight, parallel bands of black, white, and brown chalcedony. The name “onyx” comes from the Greek word “onyx”, which means claw or talon.