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Turning Acid Mine Drainage Into Drinking Water?—Grass Valley Company May Have the Answer

HPT Research recently tested their patented process for treating Acid Mine Drainage (AMD) on thousands of gallons of contaminated water at the Mammoth Mine.

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Underground Mining: Getting the Ore Out


Choosing the right method to move your ore and waste is all about making the right choices. Sometimes more than one method may be used during the life of a mine as an operation expands and grows.

Ask the Experts—How can I separate gold from carbon?


Q: [I have] fine gold in activated coconut shell carbon after treatment with a battery charger, battery and salt, from my deep wells. In the furnace, the carbon does not burn away to free the gold, but mixes worse than ever...

Ask The Experts—How do you amend a placer claim?


Q: How do you amend a placer claim?

The Life of an Independent Prospector


“JP, is it possible to make a living looking for gold with a metal detector?” I get asked this question a lot...

Mining Stock Quotes and Mineral & Metal Prices


Melman on Gold & Silver


The only phrase that comes to mind in reviewing this past month is "deja vu." We've seen all this before; falling gold prices, rising stock markets, soaring hi-tech stocks, crazy initial public offerings (IPO's) and a return to public confidence that all problems can be solved.

The Heavy Minerals in Your Concentrates


The fact that mineral deposits can contribute specific types of heavy minerals is why the analysis of the heavy mineral concentrates in the streams of an area can be an important prospecting technique for finding undiscovered mineral deposits.

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The Bawl Mill   • Over the Divide   • A Word from the Editor   • Guest Editorial—Globalizing Mining in America, Part II   • Gold Point, Nevada—A One-Man Mining Town Restoration   • Rare Coin Makes a Mint at Auction   • Letter to the Editor   • Jackson Hole Gold, Wyoming   • Picks & Pans: Big River Dredging in Northern California   • Fake Assays & Assayers   • Everything You Need to Know About Gold Wheels   • Exceptional Gold Dredging in New Zealand   • Lightning Creek, British Columbia   • Mine Reopening Could Revive Region   • Willow Creek Dredging Trip   • Melman on Gold & Silver   • Mining Stock Quotes and Mineral & Metal Prices   • More Treasure From Sunken Ship

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