Chalcedony 8x16-12x22mm Tear Drop Beads - 15-16 Inch Dog Teeth Amethyst and it has been used

and it has been used throughout history for various purposes

rainbow effect of light refracting off of the air buddles inside of the stone

Blue Crazy Lace Agate is actually Mexican Crazy Lace Agate that has been color enhanced with blue to bring out the beautiful patterns in the stone

Nylon Jaw Pliers

Outback Jasper is a milky white to light pink to golden brown stone

Chalcedony 8x16-12x22mm Tear Drop Beads - 15-16 Inch Dog Teeth Amethyst and it has been usedBlue 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.