All Articles
Gold in Gossan
March 2003 by Edgar B. Heylmun, PhD
Gossan is defined as being an iron-bearing capping over a sulfide deposit. It is formed by the oxidation and leaching of sulfide minerals, leaving hydrated iron oxides such as limonite and goethite, along with manganese oxides.
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ICMJ's 13th Annual Photo Contest
January 2004
Once again we'd like to thank the many participants in our annual photo contest. Picking our favorite ten photos is never an easy task, as there were so many great photos from which to choose.
Once again we'd like to thank the many participants in our annual photo contest. Picking our favorite ten photos is never an easy task, as there were so many great photos from which to choose.
Mining Stock Quotes & Mineral and Metal Prices
January 2010
Ask The Experts—Inconsistent fire assays
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Q: ...He consistently comes up with values much higher on the same ore samples.
Q: ...He consistently comes up with values much higher on the same ore samples.
Picks & Pans: Diamond Hunting in Wyoming
January 2002
Rod Griffin and I have spent most of our free time looking for the hard-to-find diamonds, and have found ourselves involved with wildlife, obstacles, bad roads, streams, bogs, bulls—you name it.
Rod Griffin and I have spent most of our free time looking for the hard-to-find diamonds, and have found ourselves involved with wildlife, obstacles, bad roads, streams, bogs, bulls—you name it.
The Bawl Mill
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• No end in sight to tax and spend
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• No end in sight to tax and spend
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Small Mine Selective Blasting
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Drill holes in a mineralized vein often penetrate hidden layers of poor ore which, after blasting, end up diluting the production quality. Disseminated gold ores carrying two ounces per ton may be identical in appearance to adjacent vein material...
Drill holes in a mineralized vein often penetrate hidden layers of poor ore which, after blasting, end up diluting the production quality. Disseminated gold ores carrying two ounces per ton may be identical in appearance to adjacent vein material...
Goldville, Alabama
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Goldville, Alabama, (pop. 61) is located in hilly and forested country at an elevation of 1,018 feet, in the Piedmont physiographic province. It is near the northern boundary of Tallapoosa County.
Goldville, Alabama, (pop. 61) is located in hilly and forested country at an elevation of 1,018 feet, in the Piedmont physiographic province. It is near the northern boundary of Tallapoosa County.
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The Bawl Mill
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• Famous Yuba River Dredge Sinks
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• Mud Creek Placer Mine Adventure
• Junior Miners and Investors Gather in Canada
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• Company Notes
• Gold Prospecting on the East Fork River, Alaska (Part III—Conclusion)
• National Mining Hall of Fall and Museum Calls for Poetry
• Mining Stock Quotes and Mineral & Metal Prices
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• Looking Back
