Prospecting & Detecting
Practical Advice for Milling Hard Rock Ores
July 2020 by Chris Ralph
The problem is that extracting gold from hard rock is often a lot more difficult than processing placer gravels. Still, there is some very high-grade ore out there in many old mining areas.
Digging It Dry
I believe dry washing is an underappreciated prospecting method. There are plenty of places where there is some pretty decent gold to be had, but the spot is a long way from any water and dry processing may well be the best way to go.
Dredging Tips and Tricks: T-80 Air Compressor Maintenance
The next morning, I retrieved the compressor and again attacked the sticky head bolt. As if by magic (and some applied physics) the head bolt sighed and finally broke loose.
Customizing Your Dredge
I am going to suggest dozens of ways you can increase suction power, dredge to greater depths, and improve recovery methods in your sluice box.
Looking for that Hidden Placer
I detect in a wide array of situations. I like to search for places that no one has been to. I really like to find areas that have never been worked at all.
How Far Has That Gold Traveled?
Let’s examine why your placer gold looks the way it does and what you can tell about its journey based upon its appearance.
How to Stake Your Own Claim—Researching Mining Claims
Once you have determined that the land is locatable, the next step in the claim research process is to determine if the land has already been claimed by a previous locator.
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The Bawl Mill
• Ask The Experts - Can GPR be used for lode prospecting?
• Ask The Experts - How do I extract gold from pyrite?
• Ask The Experts - Should I dig faint sounds with no indicator bars while detecting?
• Ask The Experts - Should the detector sound on iron and nickel in a gold area?
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• Sluicing and Detecting Downstream
• Tips and Tricks
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• Polymetallic Skarn Deposits
• Speed Prospecting for Hard Rock Gold
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• Melman on Gold & Silver
• Mining Stock Quotes and Mineral & Metal Prices