Crazy Lace Agate Bracelet Collection Crazy Lace Agate is a patterned microcrystalline quartz with aluminum and iron inclusions. Its surface is precisely crafted with distinctive patterns that mimic woven lace and is often available in a variety of intricate brilliant colors. As a result, there are several indications of golfs, greys, blacks, and browns, as well as odd reds and pinks.