Prospecting & Detecting
Excavator Testing Wet Placer Ground
April 2013 by Jim Halloran
The excavator or backhoe has become the tool of choice for testing placer ground. These machines are the best way to explore and sample a placer deposit if the ground is not too wet or frozen and bedrock is not beyond the reach of the machine.Recovering Fine Gold with Oleophilic Adhesion
Oleophilic means "affinity to or attracted to oils," and this includes gold an diamonds.
Contrary to Rumors, Couple Will Keep the Saddle Ridge Hoard
Some media outlets have speculated the hoard of coins came from a theft at the old US Mint in San Francisco that was reported in 1901.
Procuring Mine Owner Permission at a Mine Site
The first experience involved an overgrown gold mine operated during the 1880s. A razed mill adjoined the mine and could be glimpsed from the isolated public dirt road I was traveling.
Detecting: Small Creek Yields Good Gold
Most of our gold recoveries have been in the cracks of the bedrock. Hot rocks in the form of dikes cross the creek at various locations, causing us to skip those areas.
Tips for Cleaning Gold Nuggets
I pulled out the nuggets I had worked on previously and looked at the size of the wire basket that the items to be cleaned are placed into. It looks much like a miniature french fry deep fryer.
Finding Gold with a VLF Detector—Part III
The higher the sensitivity setting, the louder and sharper the signal from a gold nugget or other metal target.
Gully Prospecting and Mining
This article is about our recent gold prospecting adventure, which has yielded over 20 ounces of specimen gold—with more to come.
Subscription Required:
The Bawl Mill
• Ask the Experts - processing plants that can extract rare earth metals
• Ask the Experts - what does MDB&M stand for?
• Ask the Experts - proper mining claim procedures
• The Hughes Creek Placers, Montana
• Benefits of a Detecting Partner
• Hard Rock Milling: A Matter of Scale
• Paperwork Guy—A Cautionary Tale
• ICMJ Online Forum Now Available
• Detecting For Gold—Are You Up For It?
• A Trip Down the Yukon River
• Selenium, Mercury and Suction Dredging—Studies Contradict CA State Water Resources Board
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
