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Sampling for Success—Part II


The first and most important thing of the sampling process is to try to be as unbiased as possible. There is a natural tendency to select rock that looks the best—even unconsciously.

How to Research Prospecting Locations and Mining Claims


If you are interested in researching mining claims for any purpose, you will first have to decipher the BLM’s LR2000, a Rube Goldberg database seemingly designed by a 1980s Soviet-era computer hacker.

Some Tips and Tricks for Dredgers: Determining Pulley Size and Belt Length


If Epd is larger, then the compressor will be spinning faster than the manufacturer’s maximum specified RPM and might destroy itself. If this happens, then the compressor again might not produce enough air to support a diver. Neither is a desired outcome.

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How to Turn Your Gold Finds Into Cash


Even if you are not ready to cash in right now, it might be good to evaluate your options and make a plan of action so when that day comes you know exactly what to do.

Sampling for Success—Part I


All these decisions and more depend on the richness of a claim—something that is determined by sampling. But sampling isn’t cheap, and even collecting the samples can be more difficult than it appears on the surface.

Time to Stake Your Own Mining Claim


So let’s dive in and see what I can do to convince you that this is the year you should be out staking your own claims.

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Determining The Optimal Crushing Size for Gravity Recovery


It’s not easy to figure out what is best without testing, and so a certain level of confusion has developed about how small the ore ought to be crushed.

Exceptions to the Rules: Re-Thinking Prospecting Rules of Thumb


Looking at the exceptions to the basic rules is sort of an advanced prospecting discussion, but the readers of ICMJs Prospecting and Mining Journal are plenty able to handle it.

A Lesson In Underwater Sniping


Of course, I know a bit about crevicing, but Steve seems to really have a knack for it, and I’m all about continual learning. I can always learn a few tricks from the pros.

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Crumb Hunting With A VLF Detector


Chris got a nice target signal on the edge of rising bedrock, but still in a low, but washed area. After breaking up the bedrock, he recovered several pieces of gold amounting to almost three pennyweight.

High Sulfidation Epithermal Deposits


They tend to be big, coming in large to extremely large sizes. They can also be amazingly rich and produce huge amounts of very high-grade ore.

How to Refine Silver—Pt II


Silver recovery from low-level solutions is frequently done in a cell that has a cathode with 2 to 5 or more times the surface area as the anode.

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Charles P. Watson, Chief Geologist

How to Refine Silver—Pt I


Silver refining has been used from ancient times to change the characteristics of the metal. Early metallurgists refined silver by heating it a couple hundred degrees above its melting point and holding the metal at an elevated temperature for a period of time.

Resurrecting An Old Hard Rock Mine--The Saga Continues


Another little gem of equipment he built was a nifty sample splitter. In order to get accurate assays, you need to have really good, representative samples for the assayer to process.

How Long Does It Take to Find and Recover An Ounce of Gold?


Some ask if a prospector can collect an entire ounce in a day. It is possible; I’ve done it before.

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Tips for Cleaning Gold Nuggets


I pulled out the nuggets I had worked on previously and looked at the size of the wire basket that the items to be cleaned are placed into. It looks much like a miniature french fry deep fryer.

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.

How To File A Mining Claim


Filing claims is actually quite easy, though there are a number of pitfalls that you should watch out for. Over the years, I have made just about every mistake you can with a mining claim, and have learned a few things to watch out for along the way.

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The Basics of Exploration Leases and Contracts—Part II


This is the point where you might ask, “What do these types of contracts typically look like and how are they negotiated?” Well, that is the topic of this month’s article.

Pumping Water With Solar Power


Solar energy can be used for any size placer or hard rock mining operation. It is most practical for small and longer-term operations provided your mine is not located in a dense forest.

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