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History & Geology

All the Gold Ever Mined...

If you have been prospecting for any length of time, then you have probably heard something like, “All the gold ever mined would equal a cube 60 feet on each side.”

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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 Pedro Gold Dredge


The decision was made to move the dredge intact, a massive undertaking indeed. The goal was to move it only one mile to the Busby’s Chicken Gold Camp, but what a mile that was to be.

All About Pyrite


Most prospectors learn early that pyrite is fool's gold...but the truth is it can be an excellent indicator mineral for gold and in many cases does contain small amounts of gold.

California's Mother Lode Quartz Veins


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Mining Pegmatite Deposits


With successively lower temperatures as the water mixture cools, new sets of minerals are formed and many of those stable at a higher degree of heat became subject to alteration as the temperature progressively moved lower.

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Two of the major factors affecting the profitability of a placer mining enterprise are the relative efficiency of the mining equipment, and the rate and percentage of recovery obtained while conducting mining operations.

All About Quartz—Part II


In our May 2013 issue, we took a look at the mineral quartz, a mineral very commonly associated with gold. However, gold is not the only reason prospectors are interested in quartz. Quartz can also be very valuable as a gemstone

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