Ask The Experts
Ask The Experts - What’s the status of suction gold dredge permitting in California?
June 2020 by Scott Harn
Ask the Experts
Ore testing and other advice for starting up a mining operation.
Ask The Experts—What minerals are magnetic? Can rare earth magnets capture platinum?
What minerals are magnetic? I have heard that super magnets (rare earth magnets) can capture platinum. True?
Ask The Experts: Assay problem or recovery problem?
Q: I have tried various leaching techniques from which I cannot get a precipitate.
Ask The Experts—Iridium
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?
Ask the Experts - what does MDB&M stand for?
Q: What does MDB&M stand for?
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
Seeking The Truth—A Letter From the Editor • Legislative and Regulatory Update • PLP Update: The Path for Legally Re-Starting Suction Gold Dredge Mining in 2021