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

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Greenstone and Gold


Contacts, faults and zones of weak rock are all places that can act as a pipeline to convey gold-bearing fluids, leading to valuable deposits.

Gold From Cemented Gravels


The truth is that cemented gravels are really not all that complex. There is no mystery of how gold grew there or somehow wormed its way into these solid gravels.

Alaska Gold: Lisianski Inlet's First Bonanza


In 1967, a local resident showed me a pouch of small gold nuggets and flakes. Several years later I asked the same person where that gold was found. He responded, “From the streambed below the old stamp mill at Apex.”

Ask The Experts


Q: Is this gold or some other metal?

Surface Indications Of Quartz Adularia Epithermal Deposits


I am going to keep to the basics of surface indications and visual clues in the rocks and minerals themselves that help me find gold-bearing veins in this classification of deposits.

Potholes and Other Bedrock Traps


Potholes in bedrock can trap placer minerals and even be glory holes. They are, at least, interesting geologic phenomena, and at best, a treasure trove of gold nuggets.

Las Médulas—The Gem of the Roman Gold Mines


This mine was a real wonder of engineering, and the water supply and drifts had to be carefully managed to keep it in operation. In fact, it didn’t close due to lack of gold, but instead closed with the fall of the Roman Empire.

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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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