Prospecting & Detecting
3D-Printed Tools for Prospecting
September 2021 by Matteo Oberto
…these two guys are part of the new hi-tech generation who review new technologies and are always looking for new ways to apply them in innovative fields!
Emails Confirm--FBI Was Looking for Gold at Pennsylvania Dig Site
FBI agents were looking for an extremely valuable cache of fabled Civil War-era gold—possibly tons of it—when they excavated a remote woodland site in Pennsylvania three years ago…
A Generous Lesson on Detecting Bedrock
The signal I was hearing was coming from a vertical bedrock crack on the bank of the creek. I removed my backpack, took out my crevicing tools and started to clean out the crack when I saw a glint of gold.
Our Old Friend, Mr. Crashbox
…what adjustment can I make to my dredge that will enhance its gold-catching ability?
Gold Mining Boom in the Carolinas
Not too far from the pine-filled mountains, a young boy was exploring along Meadow Creek in Cabarrus County, North Carolina, one fine day in 1799. He discovered a beautiful rock that he took home and put to good use as a doorstop. Shortly thereafter, a jeweler stopped by to visit his folks, and as it turned out, the new doorstop was actually a 17-pound gold nugget. That nugget truly did open a door as it marked the beginning of the first gold rush in America.
Picking Our Way Through Bedrock
Once again the coil was put over the spot but the target was in the pile now. I pinpointed, grabbed a handful of dirt and began sprinkling it over the coil until I heard that mild thud.
Gold: Is It Everywhere?
Gold, on the other hand, is super rare, and is one of the rarest elements in the earth’s crust. It averages only 0.000004 percent of the earth’s surface. That is four parts in a billion.
Time for a New Approach: Detecting Float Gold
The first pieces found were in a spot that most gold hunters would not even detect, right in the middle of a downslope meadow.
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The Bawl Mill
• Ask The Experts - Would a platinum nugget contain all the PGMs?
• Ask The Experts - Can you clarify how many minerals I need to identify to be successful?
• Ask The Experts - Were there any productive mines where there were no contacts?
• Commercial Placer Mining: Alaska Style
• Indicators and Hillsides
• Surviving the Unexpected
• Gold Placers of Southern California
• Gold Prospecting for Better or Worse: Throwing Away Thousand-Dollar Hot Rocks
• Libby, Montana Prospectors Keep Tradition Alive
• Colorado Miner Sues EPA Over 2015 Spill
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
