Aura moderate transmutation; CL 12th
Slot none; Price: 24,000 gp; Weight —.
Cracked: Individually has no effect; when used in pairs, each pair grants a +2 enhancement bonus to Constitution. The bonuses from multiple stones (cracked or otherwise) stack, up to a maximum of a +6 bonus. Price: 12,000 gp.
See Inferior Ioun Stones for details on cracked and flawed variant stones.