chalcedony C2 Topic:Materials & Substances US /kælˈsɛd.ə.ni/ UK /kælˈsɛd.ə.ni/ See IPA manual Meanings 1 noun a form of quartz made of very small crystals, often translucent and used as a decorative stone The pendant contains a polished piece of blue chalcedony. Thesaurus Word family Related forms quartzagateonyx Etymology Borrowed through Latin from Greek. Topics Materials & Substances External links Google Images Cambridge Dictionary Wiktionary # chalcedony **Type:** Word **Level:** C2 **Part of speech:** noun **IPA (US):** /kælˈsɛd.ə.ni/ **IPA (UK):** /kælˈsɛd.ə.ni/ ## Meanings 1. a form of quartz made of very small crystals, often translucent and used as a decorative stone ## Examples - The pendant contains a polished piece of blue chalcedony. ## Related Forms - quartz - agate - onyx ## Etymology Borrowed through Latin from Greek. ## Topics - Materials & Substances markdown