Blue Chalcedony is a rare mineral that belongs to the quartz family that was named for the Greek city, Chalcedon. This stone is 10mm and has been paired with a stunning Opalized window druzy (16x22mm). Chalcedony has been known to restore physical energy while druzy helps one to feel secure! This pendant was designed by Marianna and Richard and handmade by Balinese Artisans! It measures 1 3/4" and has a double bale!