Ask the Experts
October 2014 by Chris Ralph• Sweep speed and sensitivity settings for a GPX-4500
• Can I get advice on a hard rock property in Calaveras County, California?
Is this a valid claim?
Looking for help on unproven claim
Q: I was wondering how such a device could locate a rich gold vein in quartz, for example, since a metal like gold is non-magnetic.
Q: What does MDB&M stand for?
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