Ask The Experts
Ask the Experts
June 2014 by Chris Ralph
• How many parts per million make a project viable?Ask the Experts
What is the best type of mat to use in a high banker set up?
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• How do I clean up gold encrusted with iron-sulfides?
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• Sweep speed and sensitivity settings for a GPX-4500
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Q: Is there a special name for this silver and copper alloy?
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What are these rocks?
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?
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NOI or POO for small backhoe
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The Bawl Mill
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• Finding Gold with a VLF Detector—Part III
• Silver and Base Metal Deposits of the Pioche District
• California Dredgers: A Step Closer to Getting Back in the Water
• Arizona's Youngest...and Oldest Prospector
• Exploring Placers with Auger Drills
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
• Correction
• Crushing Quartz in Calaveras County: A Placer Miner Learns New Tricks
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Legislative and Regulatory Update
• A Few Methods for Sampling Hardrock Deposits
• Protecting Our Access to Public Lands
