Understanding Large Gold Deposit Types: Discovering New Mines

November 2018 by Chris Ralph

The other opportunity that I see is in seeking unusual types of deposits. Specifically, the prospector would be searching for the stuff no one (or almost no one) is searching for. These deposits are effectively hiding in plain view.

Ask The Experts

December 2014
• Determining the amount of gold in a specimen

How to Interpret Assay Values

January 2018

This assay system of ounces per ton sounds simple enough, but the use of the metric system and the additional measuring terms of “grams per ton” and “parts per million” (ppm) has created some misunderstanding of ore value.

Determining the Amount of Gold in Rich Ores

February 2016
This is just the type of specimen that could have been easily ignored by the old-time miners. It felt a little heavier in my hand than a chunk of quartz of that size ought to have been.

Company Notes

August 1999
• Homestake Mining Company
• Placer Dome Inc.
• AZCO Mining Inc.
• Guyana Diamond Corp.
• Canadian Mining Company, Ltd.
• Hecla Mining Company
• Pan American Silver Corp.

Ask the Experts

December 2013
Ore testing and other advice for starting up a mining operation.

The Bucking Room

October 2015
Since this position was the least desirable due to the hard physical labor, the bucking room was used as punishment. Do you have a mediocre worker? Bad attitude? Off to the bucking room!

Montana’s Rosetta Stone: Discovering Mines In The Treasure State

May 2015
This is the intelligent way to start modern prospecting. The value of literary research yields challenging outings, specimens, history and geologic research.

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