Meaning of the word onyx in English

What does onyx mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

onyx

US /ˈɑː.nɪks/
UK /ˈɒn.ɪks/
"onyx" picture

Noun

a chalcedony that occurs in bands of different colors and is used as a gemstone and for carving

Example:
The ring was set with a beautiful black onyx stone.
Ancient civilizations used onyx for carving cameos and intaglios.