Chalcedony Geode is a micro crystalline type of quartz occurring in several different forms, including onyx, agate, and jasper.
"Chalcedony is a nurturing stone that promotes good will and enhances group stability. It can be used to assist thought transmission and telepathy. This stone absorbs negative energy and then dissipates it to prevent onward transmission.
Chalcedony brings the mind, body, emotions, and spirit into harmony.
Instilling feelings of benevolence and generosity, Chalcedony removes hostility and transforms melancholy into joy. It eases self-doubt and facilitates constructive inward reflection. It creates an open and enthusiastic persona. It absorbs and dissipates negative thoughts, emotions, and bad dreams."
-Judy Hall's Crystal Bible
Price is per stone. Made by the earth, so each piece is different.