Chalcedony pink ball 10mm
The terms "Calchedon" and "Carchedon" are first used by Pliny the Elder in his Latin Naturalis Historia in the 1st century AD. Which stones have been described here, however, cannot be clearly identified on the basis of the descriptions. Over "intermediate stages" like Calcedon, Calzedon, Chalzedon or Kalcedon the name changed to the today common Chalcedon.
The strand of rose chalcedony is about 40cm long.