The G-Stone is an energy source developed on the Green Planet by the "Green Planet's Protector," Cain, to emulate the natural Zonder-purifying powers of his newborn son, Latio. The resulting green gemstone is capable of converting courage into life force, which can be converted into power using the GS-Ride. When crystallized in a large enough form (known as a G-Crystal), it also produces an aura of power known as the Genesic Aura. The energy produced by a G-Stone is the polar opposite of Zonder Metal, and when the two energies collide they erase each other, leaving only the stronger energy remaining in the end.