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Sulfides and oxides—what's the difference between the two?

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The Batteries Metal Rush


There is a major change coming in the economy of the world and now is the time for prospectors and miners to grab a ticket and get on board.

Simple Rules of Gold Geology: Comparing Epithermal and Mesothermal Deposits


Geology is a science of general tendencies with frequent exceptions, not one of hard and fast rules that are always true and never vary. For almost every well-accepted rule of gold deposits, I can point you to a number of important exceptions.

Confluence Placers


Confluences of placer streams are well known as concentration sites for heavy minerals. The basic reason is that...

The Wild Rush To Find More Cobalt—Part II


In this second part on cobalt, I will take a look at the various types of cobalt deposits and how you can prospect for them. Who knows—perhaps the next big cobalt strike will be yours.

The Wisdom of Mark Twain—And Tales of Cheating the Unwary Prospector


I (enjoy) Twain’s description of a gold mine, “A hole in the ground with a liar at the top.” Some humor here? You bet, but I’m sure he meant it to be a real eye opener as well.

The Heavy Minerals in Your Concentrates


The fact that mineral deposits can contribute specific types of heavy minerals is why the analysis of the heavy mineral concentrates in the streams of an area can be an important prospecting technique for finding undiscovered mineral deposits.

Gold, Quartz & Chalcedony—Part II


The specific gravity of chalcedony is 2.58 to 2.64. This is slightly lower than coarsely crystalline quartz because of slight porosity in chalcedony. Being so light, it will easily wash out of a gold pan.

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The Bawl Mill   • Ask The Experts   • Ask The Experts   • Ask The Experts   • Ask The Experts   • Companion Gold   • The Smell of Gold—Part I   • A Few Tips and Tricks for Beach Mining   • The Basics of Froth Flotation   • Direct and Constructive Notice   • Moore Creek, Alaska—Then and Now   • Nome Offshore Dredging Creates Challenges   • Mining Journal Wins Again!   • The Montanore Copper and Silver Project   • Family Wins Back Seized Gold Coins   • Melman on Gold & Silver   • Mining Stock Quotes and Mineral & Metal Prices

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