All Articles
Turning Acid Mine Drainage Into Drinking Water?—Grass Valley Company May Have the Answer
September 2000 by Staff
HPT Research recently tested their patented process for treating Acid Mine Drainage (AMD) on thousands of gallons of contaminated water at the Mammoth Mine.The Bawl Mill
• It’s a record-breaking year!
• Soybean fuels are not for the birds...or fish
• Cooler temps may put a freeze on Global Warming?
• Wasting more of your money
The Highs and Lows of Drywashing
We were met with a plethora of mechanical problems with the dry washer and even a few with the excavator that were at times frustrating, but we were in this for the long haul, so we needed to solve these problems and move forward.
Man's Best Friend
Adam’s condition had been deteriorating every step of the way. At times, I could only coax him ten or twenty feet before he laid down again. He refused to eat or drink. At this point, I realized we might not get out of the canyon by dark and might need help getting Adam out at all.
A New Method for Handling Stubborn Gravity Middlings
The solution focused on the relative difference in malleability between gold and waste, rather than the difference in density exploited by gravity circuits.
DNI's Black Shale Metals Projects
While much attention in northern Alberta has been focused on the rapidly growing “oil sands,” another story of particular interest to the mining community has been taking shape virtually unnoticed in the same region.
Basic Geology for the Independent Miner—Part II Recognizing and Understanding Rock Formations (Petrology)
Rocks are an aggregate formed from the accumulation of minerals. Minerals form under various conditions, and when the minerals come together in mass, they form rocks.
Gary It's There
This year was a test. We had never done anything like this before, yet we grossed $30,000 in the short time we had to mine.
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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
