More Tips for Evaluating Ores
July 2007 by Charles L. ButlerTabling and jigging are two relatively inexpensive methods for recovering the “free particle values” from the noble metal ores. However, not all ores contain their values as free particles. In fact, many ores contain appreciable amounts of “metallic salts” that readily dissolve in one’s system water and continue to migrate right along with this water.
A study showed that between 1930 and 1980, only a quarter of one percent of the land in the United States was used in all mining applications combined, including surface mining, tailings disposal, underground mines, and all mineral processing facilities.
Years later I returned with a new detector with a smaller coil and detector technology more sensitive to smaller nuggets. I found my first nugget within five minutes. I had a second five minutes after that.
I researched the Internet and found a number of table makers, but technology has changed in the last 25 years. No one could sell me a kit for a new deck with wooden riffles...
From the December 2013 issue:
• Too little, too late...
• Beware of Argentina...just kidding!
• A million dollars just doesn’t go as far as it used to...
• Well qualified
...miners, prospectors and mining related businesses are discovering that capital investments in equipment, machinery and other business assets are more affordable today than ever before.
Two years after California's major gold discovery, another find was made in Ballarat, Australia. The news of the discovery went world-wide, and many of the California prospectors had heard plenty about Australian gold—especially the 2,284-ounce nugget found there.
The Bawl Mill • Ask the Experts • The Mountain Gate Mine • The Basics of Small-Scale Heap Leaching with Cyanide Part I—History, Suitablility and Permitting • Oregon Suction Dredge Permit Update • In Pursuit of Gold and Silver in the Sierra Madres—Buying the Pilot Mill • Life in the Alaska Gold Rush • More Small-Scale Miners Attracted by Gold Prices • Gold in New Zealand • Ready “Ore” Not, Uranium Boom is On Again • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices • Looking Back