TYPE OF CHALCEDONY Crossword Clue
TYPE OF CHALCEDONY Crossword Clue
We know 2 solutions for: TYPE OF CHALCEDONY
Crossword Puzzle Infos
Type of chalcedony is a term used to describe a variety of cryptocrystalline quartz. ONYX and sard are two types of chalcedony, both of which have a hardness of 6-7 on the Mohs scale. ONYX is a black or dark brown variety of chalcedony, while sard is a reddish-brown variety. Both ONYX and sard are often used in jewelry and other decorative items.