Ask The Experts
January 2016 by Chris RalphGold nuggets and serpentine contacts
• Sweep speed and sensitivity settings for a GPX-4500
• How small should I crush my hard rock ore?
Q: With safety as a given, what can the average miner, or Joe-blow greenhorn do to identify and extract some metals or minerals with off-the-shelf products or natural ingredients?
Gold and silver in Pennsylvania
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