amulets were particularly prevalent in ancient roman society, being the inheritor of the ancient greek tradition, and inextricably linked to roman religion and magic (see magic in the graeco-roman world). amulets are usually outside of the normal sphere of religious experience, though associations between certain gemstones and gods has been suggested. for example, jupiter is represented on milky chalcedony, sol on heliotrope, mars on red jasper, ceres on green jasper, and bacchus on amethyst. amulets are worn to imbue the wearer with the associated powers of the gods rather than for any reasons of piety. the intrinsic power of the amulet is also evident from others bearing inscriptions, such as "vterfexix (utere fexix)" or "good luck to the user." amulet boxes could also be used, such as the example from part of the thetford treasure, norfolk, uk, where a gold box intended for suspension around the neck was found to contain sulphur for its apotropaic (evil-repelling) qualities.