Chalcedony 15x25-17x28mm Tear Drop Beads - 15-16 Inch Butterfly and gives a silvery green

and gives a silvery green or blue sheen

Naturally occurring in hues of blue to green to green with spots and streaks of red

Unlike many other turquoise varieties

naturally occurring mineral composed of pure carbon

Porcelain Agate is a natural agate that is dyed and heated to give it the unique blue color and pattern that resembles porcelain

Chalcedony 15x25-17x28mm Tear Drop Beads - 15-16 Inch Butterfly and gives a silvery greenBlue 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.