How To
Mining Claims—What to Know Before You File
April 2011 by Chris Ralph
During the initial assessment year (the year of location), the claim maintenance fee must be paid at the time the notice of location is filed with the Bureau of Land Management. Failure to pay the claim maintenance fee will void the claim.Care and Lubrication of a Model 13 Laboratory Wilfley Table
A Wilfley table works best when all of the mineral being run across it (the pulp) is about the same size. For this reason, I took a good look at each of the samples.
Resurrecting An Old Hard Rock Mine—Gold At Last!
We’ve been busy with a plethora of projects, all aimed at gathering gold into a pile big enough to brag about. We’re not there yet, but I’ll show you some of the interesting projects we’ve completed since we talked last.
Making Adjustments to Catch Fine Gold
This fine gold that is so common is probably the most notorious for eluding our riffles and mattings.
What To Do When Gold Recovery and Assay Values Differ
Before going into an analysis of the ore composition, two other major factors will affect the result. These are the accuracy of the assay and the effectiveness of the mill for the gold recovery.
Shaker Tables for Processing Hard Rock Ores
Most placer equipment is really made with gold in the 30 and larger mesh sizes in mind, though if carefully used can often get reasonable recovery down to the 50 mesh size.
Determining the Amount of Gold in Rich Ores
This is just the type of specimen that could have been easily ignored by the old-time miners. It felt a little heavier in my hand than a chunk of quartz of that size ought to have been.
Detecting Alone -- What to Look For
I figure there are a lot of new people out there who have the same question. I will try to give some answers that hopefully will give you more confidence in finding your own spots.
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The Bawl Mill
• Prospecting Underground: Use Caution
• Small-Scale Concentrating and Recovery Methods
• 5th Circuit Ruling May Benefit Miners
• Indicator Minerals for Gold & Silver
• Mud Men: Pocket Miners of Southwest Oregon Part III
• Legislative and Regulatory Update
• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices
• Silver Mining Returning to Texas
Free:
A New Look at Old Mines
• Proposed Regulations for California Suction Dredging
