Chalcedony (Marbled) 16mm Puff Coin - 15-16 Inch May In this strand

In this strand

including to ward off illness and the Plague

This effect is known as “labradorescence

mostly known for its green varieties

Rhodochrosite has a pearly luster and often displays banded patterning

Chalcedony (Marbled) 16mm Puff Coin - 15-16 Inch May In this strandBlue 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.