It is a nickel silver squash - stones are rainbow imperial jasper and it is fabulous! Every time I study the the healing energies, and metaphysical properties, I think 🤔 wait maybe I should sleep in it! 🤣 Rainbow Jasper, also called Fancy Jasper or Multi-colored Jasper, is a steady wholesome healer, to bring balance to the physical body, and focus to the mind and intellect.