Ask the Experts
April 2012 by Chris RalphQ: Graphite spray to prevent sticking when using cast iron molds
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?
How do I set up a small placer operation?
• Can I find enough gold to make a living with only hand tools?
The Bawl Mill • Ask the Experts • Prospecting Homonyms • Revisiting an Old Mine in Idaho Reaps Rewards • Today's MSHA • Following Clues to a Lost Gold Deposit—The Northern Extension of the Cedarberg • Bering Sea Gold—Part I • Safety With a Tax Deduction • Who Says You Have to Own a Claim to Find Gold? • US Policies Holding Back Arizona • Judge Gives OK to Nevada Mining Tax Initiative • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices