Ask The Experts - What are these thin brittle sheets with reddish powder?
August 2018 by Chris Ralph
Q: ...Is there any way to process the ore without using mercury or cyanides...?
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.
• Are these gold amounts large enough to interest a mining company?
Breaking cemented gravels
How do sluicing and drywashing compare in effciency?
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