Nephrite Jade is the form of Jade our beads and pendant are made of. It is extremely tough and resistant to fracture and has been used to make choppers and blades since Neolithic times. It has been said that it brings strength and longevity to the wearer. It protects against failure and misfortune. Also known as Nephrite, Jade. It is mined in North America, Europe, and Asia. Mohs hardness 7.