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Coin Hunting
Since the first edition of this book was published in 1998
sensitivity is everything
flush with large amounts of water
Wireless Technology: XP proprietary wireless platform
Pneumatic Rock Crusher and Mortar CZ-21 Coin HuntingThis is a complete set with the pneumatic rock crusher and the mortar. Rock Crusher Details: 7. 75" x 2" with a . 400" outside diameter end that mounts in hammer. This air hammer attachment is custom made for the modern day gold prospector or miner. Fits in the average hand held pneumatic air hammer. Pulverizes hard quartz easily. Stands up to abuse of crushing hard rock. Makes sampling ore a piece of cake. Will crush rock below a 60 mesh in seconds.