Ask The Experts
Ask The Experts—Iridium
December 2010 by Chris Ralph
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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If it's gold, how should I clean it?
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Q: Graphite spray to prevent sticking when using cast iron molds
Ask The Experts: Could you expand on your previous blasting article?
Q: Could you write more about the last two methods that you mentioned—the expanding chemical mixtures and the micro blasters, how and when to use them, and when not to use them?
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