Chalcedony (Marbled) 16mm Puff Coin - 15-16 Inch Fancy ” Tourmaline is unusual in

” Tourmaline is unusual in that it is both pyroelectric and piezoelectric

Carnelian is a glassy

and is traceable to virtually all ancient civilizations

creating a unique "marbled" look

Fancy Jasper

Chalcedony (Marbled) 16mm Puff Coin - 15-16 Inch Fancy ” Tourmaline is unusual inBlue 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 Speakers Stone, it is believed to have been worn Cicero, the great Roman orator. These strands were cut into beads with some of the material the Chalcedony was mined out of remaining, creating a unique "marbled" look.