Popular Michigan agate hunting locations include Whitefish Point, Grand Marais Beach, and Agate Beach ... when the outside of the rock has a dull, waxy luster. Agates are often translucent ...

lump of compact waxy rock. Gary, an engineer, said: "It was a bit of a shock. It was down a section of the beach where no-one really walks. "It smells too bad though. It's a very distinctive smell ...