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The Mexican Gold Belt
January 2006 by Edgar B. Heylmun, PhD
Mexico is a large country, much larger than the state of Alaska. It is almost as long as the US is wide. It has climates that range from tropical rainforests in the south to barren deserts in the north. The Sierra Madre is a forested plateau that reaches elevations in excess of 10,000 feet. It parallels the west coast of the country.Sluicing on Bedrock
My head nearly scraped the caribou horns that hung above the doorway of the old tarpaper cabin I would call home for a few days. The cabin was originally built in the early 1930s and had been dragged about 200 yards across the valley to...
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.
Melman on Gold & Silver
Every financial writer enjoys a few moments of pleasure when one of his predictions is validated by the markets and your columnist is no exception.
Melman on Gold & Silver
This collection of positives augurs well for strengthening worldwide industrial activity leading to upward price pressures and eventually rising inflationary expectations—all of which have historically positive implications for gold and silver...
Cyanide-Free Gold Separation
Some ores—mostly those with a high free gold content—are very amenable to gravity concentration. Well oxidized ores containing coarse gold are usually best for non-cyanide processes. Ores with significant sulfide content may require the...
Mining Stock Quotes and Mineral & Metal Prices
Ivanhoe Partners With Rio Tinto
Ivanhoe Mines announced that Rio Tinto will invest $1.5 billion to engineer, construct and operate Ivanhoe’s Oyu-Tolgoi copper and gold project in the South Gobi region of Mongolia.
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The Bawl Mill
• Rent, Lease, or Own Your Equipment
• Basic Geology for the Independent Miner—Part I Recognizing and Understanding Minerals
• A Profitable Approach—Financing Mineral Exploration With Oil & Gas Projects
• The Grubstake Gulch Placers, Alaska
• The Lynx Creek Placers, Arizona
• Gemstones in Wyoming—Part II
• Melman on Gold & Silver
• Looking Back
• Mining Stock Quotes and Mineral & Metal Prices
