Prospecting & Detecting
Beach Mining for Placer Gold
June 2019 by Rob Roy
What I saw was a beach area that was just completely covered in black sand. Rubbing my hands close together like a kid in a candy store, I could not wait to get set up.
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.
Ask the Experts
Setting up a gravity dredge
The PIGMI—a DIY Crevice Tool
I’ve had great success using it to gather gold from crevices. I’d like to share the design with all of you gold miners reading this article and hope that you get as much satisfaction building and using it as I did.
Romancing the Rock
With the exception of well-established operators with proven reserves and years of field experience, the high price of gold brought a flood of speculators, con men, and real estate brokers into the mix who were not previously engaged in the gold mining market.
Good Assays and Bad
The high prices for gold and silver are exciting and certainly have revolutionized the prospecting and mining scene. New interest in gold and silver mining is springing up from every corner, from individual prospectors armed with gold pans to exploration and mining companies working to set up multimillion dollar commercial operations producing hundreds of thousands of ounces per year. The idea of getting riches from rocks is one that motivates a lot of folks all over the globe. It’s an exciting time, but this excitement brings out another side...
Volume is the Key to Success
While recovery rates are important, they must necessarily be secondary to the volume of material processed. Running more material at lower recovery rates is generally preferable to increasing the efficiency of the system.
Springtime Sampling In The High Desert
As the ground thaws and dries out and the warmth of spring starts to settle in, it’s time to start afresh with a new prospecting season.
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June 2019 (Vol. 88, No. 10)
• The Bawl Mill
• Legislative and Regulatory Update
• Ask The Experts - Can you provide information on gold in Ghana?
• Ask The Experts - Geophysics and gold deposits
• Ask The Experts - Do these items qualify as mechanized equipment?
• Ask The Experts - EPA Method 6020 testing
• Ask The Experts - New detector or stick with the old?
• The Value of Old Patches
• A 'Rare' Opportunity for America
• Tips for Cleaning Gold Nuggets
• How Long Does It Take to Find and Recover An Ounce of Gold?
• Gold Prospecting for Better or Worse: In A Tight Spot
• Detecting Wet Ground Yields More Fun Than Gold
• Over The Divide: Jim Straight, 1930-2019
• Reno's 1872 Time Capsule Includes Gold Rush Lore
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
Free:
PLP Update
• Comments Needed On Pebble Project Draft EIS







