Chalcedony

Chalcedony is a strongly nurturing stone that has been known as a symbol of goodwill and benevolence and encourages brotherhood.  It balances the energies of the body, mind, heart and spirit, it reinforces generosity, responsiveness, and receptivity, and soothes feelings of hostility, irritability, and melancholy.  It was used to promote stability during ceremonial activities by some native american tribes.  Physically the stone has been used to improve absorbtion of minerals and discourage a build-up of minerals in the body.  It has also been used to fight some forms of dementia, improve senility and to boost mental stability.