Ask the Experts
August 2013 by Chris RalphQ: What's the difference between a header box and a crash box?
Q: Set up a small portable operation or send the ore to a custom mill?
• How small should I crush my hard rock ore?
NOI or POO for small backhoe
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?
The Bawl Mill • Ask the Experts • Ask the Experts • Ask the Experts • Common Mistakes of the New Detectorist • The Pearce Mineralized Area, Dragoon Mountains, Arizona—Part II • Mining for Gemstones and Mineral Specimens • Fighting and Winning Without a Lawyer • The Essentials of Dry Washing • Fortymile, Alaska Prospecting Adventure • Court Says Emergency Rule in California Unjustified • Sampling Placer Stockpiles • Lower Prices Bring Layoffs • Prospecting Research • Buyer Beware! Counterfeit Metal Detectors • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices • Underground in the Original 16-1 Mine