Chalcedony Black (Marbled) 12x16mm Drum - 15-16 Inch

Blue Chalcedony is a naturally occurring soft blue translucent stone. It is a member of the Quartz family, a form of silica with a cryptocrystalline structure that incorporates Moganite along with the Quartz. Known in antiquity as the Speaker’s Stone, it is believed to have been worn Cicero, the great Roman orator.