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More Tips for Evaluating Ores
July 2007 by Charles L. Butler
Tabling 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.Additional articles that might interest you...
Melman on Gold & Silver
September 2006
It was not hard to find negative news during the past month, not hard at all. We were overwhelmed with continuing stories of the Israeli-Hezbollah conflict, which took place in southern Lebanon, and Israel remained at war with Hamas in Gaza.
It was not hard to find negative news during the past month, not hard at all. We were overwhelmed with continuing stories of the Israeli-Hezbollah conflict, which took place in southern Lebanon, and Israel remained at war with Hamas in Gaza.
Prospecting for Copper
May 2004
This article deals with copper exploration, but it is relevant to exploration for other minerals. I will use the geology of the Copper Creek area in Pinal County, Arizona, as an example.
This article deals with copper exploration, but it is relevant to exploration for other minerals. I will use the geology of the Copper Creek area in Pinal County, Arizona, as an example.
The Tangential Impulse Water Wheel in California Gold Mining History—Part II
March 2004
Even before Pelton relocated in San Francisco in 1888, many other competitive foundries and machine shops chose to enter the water wheel market. These firms were already busy with the mining trade, producing hoists, stamp mills, ore carts, Cornish pumps, crushers, grinders, compressors and drills.
Even before Pelton relocated in San Francisco in 1888, many other competitive foundries and machine shops chose to enter the water wheel market. These firms were already busy with the mining trade, producing hoists, stamp mills, ore carts, Cornish pumps, crushers, grinders, compressors and drills.
Melman on Gold & Silver
November 2001
Exactly one month ago—to the day—I was watching in stunned silence, along with billions of others around the world, as the immense tragedy of September 11 played itself out. Since that time, the President has issued a virtual declaration of war; actual attacks against the Taliban strongholds in Afghanistan have begun and the “other side” has threatened an escalation of terror.
Exactly one month ago—to the day—I was watching in stunned silence, along with billions of others around the world, as the immense tragedy of September 11 played itself out. Since that time, the President has issued a virtual declaration of war; actual attacks against the Taliban strongholds in Afghanistan have begun and the “other side” has threatened an escalation of terror.
Record Gold Prices Prompt Gold Mining In Boulder
June 2008
Nearly 150 years after gold was discovered in Boulder County along Gold Run Creek, a couple of old mines are slowly cranking back into operation now that excavating the slender veins of precious metal is profitable again.
Nearly 150 years after gold was discovered in Boulder County along Gold Run Creek, a couple of old mines are slowly cranking back into operation now that excavating the slender veins of precious metal is profitable again.
Picking Our Way Through Bedrock
December 2015
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.
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.
Mojave Desert Placer Mining
March 2002
Several locations in the Mojave Desert region of California have yielded placer gold, apparently scattered from nearby lode deposits that have long-since eroded from existence. Some of the areas are still popular with weekend prospectors, and some have been worked on a much larger scale in recent years.
Several locations in the Mojave Desert region of California have yielded placer gold, apparently scattered from nearby lode deposits that have long-since eroded from existence. Some of the areas are still popular with weekend prospectors, and some have been worked on a much larger scale in recent years.
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• 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
