Ask The Experts
Ask The Experts
September 2016 by Chris Ralph
• Is there a single book that covers most aspects of mining and recovery?Ask The Experts
Gold in clastic black shale
The Portable XRF Gun
While there is no metal detector that will see only gold, there is a device that can reliably distinguish gold from lead, copper, iron or other metals. It is an X-Ray fluorescence tester, sometimes called an XRF gun.
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