Ask The Experts - What’s the status of suction gold dredge permitting in California?
June 2020 by Scott Harn
• Sweep speed and sensitivity settings for a GPX-4500
• Can you explain a jig, Ainlay bowl, hammer mill?
Q: How much gold do I have per ton and how can I improve my assay method?
Using GIS systems to aid in mapping.
The Bawl Mill • Our Readers Say Re: It's Time to Get the Heck Out of China • Ask The Experts - How do I properly and safely dispose of blasting caps? • Ask The Experts - How much silver per ton does it take to make a mine profitable? • Ask The Experts - How clean do my gold concentrates need to be to pour a gold button or bar? • Ask The Experts - What is the name and model of the old jaw crusher pictured in last month’s issue? • Dredging Tips and Tricks: T-80 Air Compressor Maintenance • Hard Rock 101: Mechanical Techniques • Clearing the Nugget Trap with a Detector • Resurrecting an Old Hard Rock Mine—Setting Up the Millsite • Desert Prospecting Yields More Than Just Gold • Memories of Shirttail Creek, Northern California • Indictments Pile Up for Gold Traders • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices