Patagonia Agate from Argentina consists primarily of cryptocrystalline silica, chiefly chalcedony, alternating with microgranular quartz. It is characterized by its fineness of grain and variety of color.
Patagonia Agate is a healing stone for body, mind and spirit. It can increase concentration, honesty and memory. It also protects the wearer from psychic attack, thereby preventing negative energy from harming you.