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History & Geology

Gold Depositiion and Gradients of Placer Streams—Part II

The steeper the gradient is, the more potential erosive power to move gold and other bedload sediments, and the more power to remove obstacles to flow.

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Your Guide to Prospecting in Alaska


Alaska is getting a lot of interest these days, not least because of all the gold prospecting shows on television. Hardly a month seems to pass without some new prospecting show being announced, and a couple of the most popular feature Alaska.

Preserving the True History of the Ivanhoe


My partner had the contacts and it wasn’t long before we had an agreement in place and the company had a geologist on site. I recall a time when he was getting the lay of the land, so to speak, and he broke off a rock sample and inspected it with his magnifier.

Mineralized Faults and Contacts in the Search for Gold


Fault zones and rock contacts are important because the vast majority of gold and silver deposits, as well as those of many other metals, are formed by hot, mineralized water solutions.

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.

All About Native Silver


Some of the wire forms are strange and fantastic, with wires sticking out in twisted, seemingly random directions. Others have deformed crystals and all of them have significant value to collectors.

SS Central America Gives Up Millions in Gold Rush Era Gold


A treasure-seeking young man whose name will forever remain anonymous made the months-long journey either over land or by sailing ship to California after word spread about the gold strike in 1849.

The Strange History of the Utica Mine


In the summer of 1854, John Selkirk, a discouraged placer miner who was down on his luck and ready to go back to Massachusetts, tied his mule up in a gulch north of what is now downtown Angel's Camp.

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The Bawl Mill   • The Life of an Independent Prospector   • Gold in Guyana—Part I: Porknocking on the Puruni River Road   • That Something Extra   • Prospecting for Copper Ores—Part II   • Metallic Trash—Scourge of the Prospector   • Gold Mining Boom in the Carolinas   • California Suction Dredging Update   • Mine, Baby, Mine!   • Hecla to Reopen Lucky Friday Mine   • Nova Scotia Shows It's Serious About Jobs & Mining   • Melman on Gold & Silver   • Mining Stock Quotes and Mineral & Metal Prices

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