Blue Crazy Lace Agate is actually Mexican Crazy Lace Agate that has been color enhanced with blue to bring out the beautiful patterns in the stone. Crazy Lace Agate is a banded Chalcedony that in its natural form is predominantly white with layers of brown, gray and black. It has been called “the Laughter Stone” or “Happy Lace” for its believed power to elevate thoughts and promote optimism.