Crazy Lace Agate is a variety of banded Chalcedony, a mineral of the Quartz family. It is predominantly white, with layers of creamy browns, blacks and grays. Some may include layers of yellow ochre, gold, scarlet, pink and red. Crazy lace agate, found in Chihuahua Mexico, is often brightly colored with random lacy patterns. This mineral is quite young at only 70-90 million years old. The Mexican Crazy Lace Agate is a banded micro crystalline quartz infused with aluminum and iron, thus creating some of the wilder colors found in the stone.