Chalcedony

The Stone of the Speaker's Aid

Chalcedony (pronounced kahl-sid-nee) is the form of quartz that is compact and microcrystalline. In the gem trade, the term chalcedony is often used specifically to describe the white, gray, or blue translucent type of chalcedony, but its technical term includes all additional varieties. It is believed to open the mind to assimilate new ideas and help with learning new languages, improve memory, encourage mental flexibility, and enhance verbal dexterity and listening skills. Chalcedony is believed to help you measure your words to hold back saying something you might later regret. It is useful for the eyes and promotes inner sight.