Prospecting & Detecting
Old Dog(Fighter), New Trick
June 2022 by Ralph Wetterhahn
Then it occurred to me that the drywasher was designed by an engineer. Gotta love engineers! Those slide-rule geeks always tinker with gravity, angles, curves and flow.
Piggin' for Gold
Take a look at the picture—it’s pretty simple and you can build it yourself.
On the Road
Heading to the sierra for another adventure! On The Road Again..
The Madonna Nugget
It was down deeper than I expected for surface trash. It wasn't until I was down six inches that the target screamed from my scoop.
Dredging Tips and Tricks: A Measure of Water Pump Efficiency
…as an academic argument, when mated to the appropriate engine, is the pump really moving water at the rate of 400 GPM?
Detecting Nuggets—Overcoming New Challenges
Depth is not an issue unless the site is thoroughly cleaned of shallow trash, and it is far easier to isolate and remove targets using a small coil in a target rich location.
Prospecting for Diamonds in Kimberlite
Kimberlite is very difficult for geologists to find, let alone prospectors and rock hounds. This is because kimberlite is rarely exposed on the surface and few people know how to identify the rock.
I opted for the underwater portion of the river. All I have to do is float down the river and pick large flakes and small nuggets out of cracks and crevices while staying cool in the summer heat.
The Bawl Mill • Why The Paper Change? • Ask The Experts - When do I use detector discrimination? • Ask The Experts - Is gold found in limestone? • Ask The Experts - Can pyrite crystals be the same color as gold? • How to Use BLM’s New Mineral and Land Records System • A Short But Productive Hunt • Blast from the Past: Jeff Casserly Tells His Own Story • Talking Metal Detectors with Brent Weaver of Garrett • Strategies for Detecting Heavily Pounded Areas—Part III • EPA Recommends Against Reissuing Permit for PolyMet Mine • The Highs and Hazards of Desert Prospecting • Just Feel The Heft of It • Proposed Nebraska Mine Has Sizeable Deposit of Rare Elements • Mining Stock Quotes and Mineral & Metal Prices • Melman on Gold & Silver
Introducing ICMJ’s New Owners: Josh and Sherrie Reinke • Legislative and Regulatory Update • PLP Update