Chrysophrase is a green variety of chalcedony who's color comes from the metal nickel. It's most recognizable color is apple green. It also comes in deeper jade like colors and lighter colors. Like Lime Green and a Greenish Yellow sometimes called Citron.
This pendant is (62mm 2.45") tall from the top of the bail and (23mm .93") wide. The bail will accommodate a 5mm chain. Chain not included.This stone is a bit more green than the picture.