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Placer & Lode Gold Deposits

Even though there are many varieties of gold deposits, prospectors often refer to two general types: placer and lode. Some lode examples include...

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Increase in Silver Demand by Photography Industry


Washington—The use of silver by the photographic industry worldwide is projected to increase 10 percent over the next five years for photographic applications ranging from amateur snapshots to medical X-rays and motion pictures, according to a new report published in the Silver Institute's Silver News.

What's All This Talk About Mining Districts?


The main problem with the current scheme is that regulatory agencies often consult with you, then disregard your concerns and do what they want anyway.

Lluvia de Oro—A Shower of Gold Awaiting Development in the Sierra Madre—Part II


Remains of the Tubares Mission, Mexico.Superintendent Tom Phillips soon returned to the mines with fellow worker Thomas J. Findlay, and began repair work. Phillips had already determined that the machinery had been operated at various times by armed forces...

Detecting Old Ground Sluice Locations


Ground sluicing, surfacing and scratching are a few names given to the recovery of gold in shallow areas. Where I live, the hills are dotted with small surface diggings.

Police Extend Detention of Newmont Executives


Five executives from the American mining giant Newmont will continue to be jailed while facing pollution charges in Indonesia, police said, despite test results that show “normal” mercury levels near a former gold mine.

Picks & Pans: Detecting at Ganes Creek


My long and tedious trip started July 9, 2005, from Bradley International Airport in Connecticut on a flight to Atlanta. I changed planes and continued on to Anchorage, Alaska.

Selecting a Gold Recovery System


Tabling and jigging are two relatively inexpensive methods of recovering the “free particle values” from the noble metal ores. However, not all ores contain their values as free particles. In fact, many gold ores contain appreciable amounts of “metallic gold salts,” some of which readily dissolve in the system water and continue to migrate right along with it.

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The Bawl Mill   • Our Readers Say:   • Spanish Silver in Arizona   • Hog Mountain Mining, Past and Future   • Picks & Pans: Dredging Costa Rica   • Gold in Texas   • The Goldhill Mining District   • New Arsenic Study Supports Tougher Standards   • Miners Resume Search for Platinum Near Platinum   • Discoloring Assay Beads   • Tons of Gold Buried Under World Trade Center   • Gold Rush Ship Uncovered in San Francisco   • Mining Stock Quotes and Mineral & Metal Prices   • Melman on Gold & Silver   • The Financial Repercussions of the WTC Tragedy   • Permit Appears Likely for Rock Creek Mine

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