Ask The Experts
Ask the Experts
February 2014 by Chris Ralph
What is the ceramic-like material embedded with gold?Ask The Experts: What is a Spanish needle?
Some fellow in Texas was selling a Spanish needle—a dousing device used to recover minerals in the old days. Do you know anything about these?
Ask The Experts - Where did the gold go?
Ask the Experts—How do you determine how far a piece of gold has traveled in a stream?
Ask The Experts
• When geologists and old-timers have conflicting views.
Ask The Experts: Is there a safe DIY alternative to cyanide or mercury for extraction?
Q: With safety as a given, what can the average miner, or Joe-blow greenhorn do to identify and extract some metals or minerals with off-the-shelf products or natural ingredients?
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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