Ask the Experts
September 2013 by Chris RalphRecovering gold from pyrite ore
Q: The Arizona BLM state office has started sending out registered letters to association placer claim holders...
What to do with black sands
Any ore grading 32% silver would contain more than 9,000 ounces of silver per ton and be valued at something in the range of $150,000 per ton. Even a few tons of this type of material would be well worth shipping off to a smelter for treatment.
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.
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