Chalcedony, $5.00 each, is know to Lessen the effects of dementia and senility. It increases physical energy. Heals the eyes, gallbladder, bones, spleen, blood and circulatory system. A creative stone, Blue Chalcedony imparts mental flexibility and verbal dexterity. Due to reordering and often getting a different batch of stones, all tumbles are random pick only!