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Border Silver
January 2003 by Edgar B. Heylmun, PhD
There is a sizable area that straddles the U.S.-Mexico border where native silver occurs in shear zones at relatively shallow depths. The district is in the low but rugged Pajarito Mountains, the highest point of which is 5,838 feet at Cerro Ruido, on the Mexican side. The deceptively rough terrain forced the first border surveyors, in 1855, to kill several mules and horses because of their injuries.Prospecting For Gold—The Osborne/Herman Hardrock Mine
We’re always out there looking, checking, researching and trying to locate a new prospect or deposit. It’s always a question as to where to start. Some days we head down to the river to do some panning, sluicing or dredging.
Fire Agate in Arizona
Agate, a banded form of chalcedony (cryptocrystalline quartz), has been used as a gemstone for over 7,000 years. Romans cut and polished agate, and this practice was taken to new heights in Germany in the 16th century.
Prospecting With a Magnetometer
Swedes were the first to note variations in the Earth's magnetic field, circa 1640, and they were the first to use the dip needle. They made the first magnetometer in 1870.
Melman on Gold & Silver
Despite a variety of other side subjects, the dominant source of financial headlines during the past month continues to be Europe, and we note two particular foci...
Russian Plane Spills 3 Tons of Gold on Runway
Residents believe doré bars landed in a snow-covered area as far as sixteen miles from the airport and some said they will be searching the area after the official recovery
Discovery of the Mountain Pass REO Deposit
How does one go about discovering a rare earth oxide (REO) deposit when he is not familiar with the rare and unusual rocks and minerals that are found in such deposits? That was the case at Mountain Pass, California, yet the deposit was eventually discovered and mined.
Iron Minerals, Your Detector and Gold
It’s worthwhile for the prospector using a metal detector to know a little bit more about the association of iron and gold as well as how iron minerals affect your metal detector.
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The Bawl Mill
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• The Ferris-Haggarty Copper-Gold Mine, Grand Encampment District, Wyoming
• Directory of Active Mines in Arizona Available
• Picks & Pans: Gold Prospecting on the East Fork River, Alaska
• Beryllium in Nevada
• Company Notes
• The Cemetery Rush
• Grandfather John's Notes
• ICMJ's 12th Annual Photo Contest Results
• Tiffany & Co. to Open Plant in Northern Canada
• The Patio
• Looking Back
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
