Green Chalcedony Beads
Chalcedony can be shaped into everything from arrowheads to cups and bowls. Historical record illustrates that chalcedony is one of the oldest used hard materials by humans.
In general, Chalcedony is a microcrystalline variety of quartz.
Chalcedony has been associated with health since at least the European Renaissance. Today, it is still said to have a positive effect on human health, specifically mental health and fighting depression.