sardonyx

• Variedad de ónice caracterizada por bandas paralelas alternas de cornalina (calcedonia rojiza o marrón) y otra calcedonia, generalmente blanca o negra; piedra semipreciosa usada en joyería.

A gemstone variety of onyx featuring alternating parallel bands of sard (a reddish-brown chalcedony) and another mineral, typically white or black chalcedony.

1. A type of gemstoneC1formal

   A gemstone variety of onyx that features alternating parallel bands of sard (a reddish-brown chalcedony) and another mineral, often white or black.

   Sardónice

   • The ancient ring was set with a beautifully carved sardonyx.
   • Sardonyx is often used in cameos due to its layered structure.
   • Collectors prize sardonyx for its distinctive striped appearance.