New Study on the Formation of Nuggets—Part I
December 2007 by Chris RalphGeologists have long realized that the vast majority of gold in typical quartz veins is in the tiny, dust-size range, a lot smaller than the gold nuggets found by placer miners. This is common worldwide in many, many gold districts.
The early day miners feared it, and it happened a lot more often than they would have liked: the easily worked rich surface ores they discovered gave way as they mined downward to a vein full of sulfides, base metals and other nasty, rebellious and...
This explains the large difference in particle sizes between placers and hydrothermal lode deposits, but also means that while the mining may be similar in some cases, the sampling and recovery techniques are usually quite different.
• Pan American Silver Corp.
• Mountain Province Mining Inc.
• Canyon Resources Corp.
Quartz is a common rock-forming mineral found in many shapes, forms, and colors.
A relaxing trip was long overdue. The deadlines associated with assembling a magazine each month tend to wear on you after awhile. I needed a break. Several organizers of Dredge Earth First were...
Putting it all together, we have indications that the petroleum price increases could continue and we believe that if that is the case, the impact on precious metals would be positive.
The single most important question to be answered when evaluating a placer deposit is: “How much is it worth?” Accurate sampling of placer gravels is essential to obtain a reasonable estimate of the total gold values contained in the deposit.
The Bawl Mill • Searching for a Paying Hardrock Deposit • Kings Valley Project Hopes to Meet Lithium, Uranium Demand • Over the Divide —Ronald Richard "Ron" Wendt • Small-Scale Mining with a Dozer and Detectors • Alaska and Nevada Continue to Lead the Pack • Silver Bonanza in the Sierra Madre; The Glorious Past of Batopilas—Part III • Looking Back • Landowners See Potential Gold Mine in Uranium Ore • Feds Raid “Liberty Dollar” Headquarters • Melman on Gold & Silver (2007 Year in Review) • Mining Stock Quotes and Mineral & Metal Prices