49g / 0.108lbs / 1.73oz
Chrysoprase is a green Chalcedony. It comes in a variety of colors, ranging from an opalescent apple green to lighter shades of serpentine green, a member of the Quartz group with a hardness of 7. Its crystal system is hexagonal (trigonal). Its green color comes from nickel, and it often occurs as nodules or in crevices in nickel deposits.