The Crazy Lace Agates ("Laguna Lace")  may be one of best well-known agates coming from a main mining site surrounded by many smaller claims (different lace names)  in northern Mexico for they are widely used in many lapidary arts since 1950s. The name "Crazy Lace" refers to the irregular and geometric patterns resulting from agates encrusting and later replacing the large pointy calcite crystals lining the fissures within the limestone hosts. Since the miners tend to break up the Crazy Lace agate veins into clunks with explosives and heavy machinery, any agates with whole patterns are somewhat scarce. The typical colors are white and gray, but but they can come in a wider spectrum of colors (I have yet to see blue and purple color) and often come with excellent shadowing effects. Recently, they have been passed as "Laguna Lace" even they came from the same pit with no relationship with the true Laguna Agates found hundreds of kilometers away (marketing tactic that I personally disapprove of).  Since the agates tend to be broken into clunks, it's not easy to obtain any agates with whole patterns.

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Rough Appearance: Broken clunks with crazy banded agates is a dead giveaway
Agates typically white, gray and yellow, but can come in quite a spectrum of colors