India is also a hub for processing of larger diamonds, pearls, and other precious stones. They consist of pieces of colored stones, shells and ivory. These people were hunters with crude tools made from stones and bones. Circling the rod are bands of precious stones. Penniman also began using capes and suits studded with multi-colored precious stones and sequins. This was done by layering rock over other stones. Use with caution in people with kidney stones. Runes are magic spells stored in small stones. It may also result in tophi, kidney stones, or kidney damage. Many of the stones are still standing. Diet can have an effect on the development of kidney stones. Incense is claimed to cleanse and restore energy in healing stones. Milling of flour is accomplished by grinding grain between stones or steel wheels. Axes were scratched on many of the stones of the palace. The players begin with two piles of "a" and "b" stones.