Turritella Agate is found in the Green River Formation of Wyoming and recognised by the fossilised snail and other sea creatures\\\' patterns in the stone. Formed over 50 million years and called \\\'survival stone\\\' due to its association with carrying energy and protection. Each fossil is hand-cut and set into our highly polished rhodium plated, sterling silver case with brown enamel detailing to enhance the raw beauty of the stone. Decorate your sleeve with an enchanting piece of history. Limited edition of 44 pairs. The colour and natural formation of our stones differs from one another due to natural variation, making each piece truly one of a kind. The face of each cufflink measures 19.7mm length x 14mm height x 6.2mm width.