noun
- a translucent or opaque microcrystalline variety of quartz, typically pale blue, gray, or white, used in jewelry and decorative objects
Usage: mineral; geology
Examples
- The museum displayed a beautiful chalcedony pendant from the ancient Roman period.
- Chalcedony is often carved into cameos and other decorative pieces.
- The pale blue chalcedony stone was polished to a smooth finish.
- Geologists classify chalcedony as a form of microcrystalline quartz.
- She wore a chalcedony bracelet that had been passed down through her family for generations.