Crazy lace agate (also known as Mexican Agate) is a banded chalcedony (microcrystalline quartz) that's infused with iron and aluminum and is often brightly colored and complexly patterned. This produces the creamy browns, blacks, greys and golds (and occasional pinks or reds) swirled together in this stone.
Properties - It is associated with sunny Mexican fiestas and dancing, and brings joy to those who wear it. It is not a stone of protection, but of support and encouragement, elevating thoughts and promoting optimism.