Selenium, Mercury and Suction Dredging—Studies Contradict CA State Water Resources Board
April 2013 by Scott HarnFederal and state regulatory agencies often cite mercury and methyl mercury in our waterways as a major factor for further restrictions on placer mining, and on suction gold dredge mining, in particular. However, these regulatory agencies are minimizing selenium and its neutralizing effects.
It’s worthwhile for the prospector using a metal detector to know a little bit more about the association of iron and gold as well as how iron minerals affect your metal detector.
I have figured out over the years that the winning combination is hard work, persistence, knowledge, and a little luck. This leads me to describe one of my best finds ever, a “honey hole” of placer gold, if you will.
Some experienced panners with the vigor and longevity to spend a full day panning in the small creeks and ravines can possibly find as much as a gram or more on a good day.
We decided to check some spots that were pretty good to us on previous trips. The detector was deceptively simple with few buttons and auto-ground balance.
His findings were not exaggerated—after running 82 buckets of gravels in two days we had a remarkable 27.8 grams of gold!
A treasure-seeking young man whose name will forever remain anonymous made the months-long journey either over land or by sailing ship to California after word spread about the gold strike in 1849.
I picked up a noticeably heavy, fist-sized chunk of what I thought was a heavy piece of iron. After wiping some of the dirt and clay off, I still didn't know what on earth this object was.
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 • Excavator Testing Wet Placer Ground • 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 • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices