Ask The Experts: Nickel assays
March 2017 by Chris Ralph
Q: Our group has found a nickel deposit in the Yuma, Arizona area that is similar to the one that you wrote about...
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.
Bismuth oxide for assaying?
• Sweep speed and sensitivity settings for a GPX-4500
Q: I believe I have found a deposit that contains iridium. What can you tell me about iridium? Are there any tests I can do in the field to confirm it is iridium? How much is iridium worth? Where can I get it assayed? Can I refine it myself?
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