Prospecting for Diamonds
January 2013 by Chris RalphLet’s take a look at diamonds and diamond mining and see how they form, how they are used beyond just jewelry, and what leads geologists to find diamond deposits.
Today, the greatest gold rushes occur due to technological advances capable of discovering gold where it once was extremely unlikely or difficult.
I love it when I am in the middle of a high trash area and all the ferrous bars go away, the screen number goes to a three or an eight, and the meter is forty to a hundred. I don’t know for sure that I have found gold, but it narrows the odds down.
...we were able to pull out close to another 3+ ounces of small, angular Silver City gold. This also included several more small nuggets, pieces of wire gold and some quartz-gold pieces—not bad for 4 days with a small sluice.
The mysteries of this spot were only just starting to develop. There is nothing but very bland granite-type rocks here, meaning no bold, favorable indicators.
So much of gold detecting depends on attention to detail. Every gold area offers its own distinct geological markers and as prospectors we must pick up on those markers.
I love to see old-timer workings while I am out detecting for gold. For one thing, it assures me that gold came from there. Second, it tells me gold should almost certainly still be there.
Because these crevices catch and hold gold so well, it's worthwhile to learn how they form, which ones are good for catching gold and which ones are not.
The Bawl Mill • From the Editor • Ask the Experts • Iron Minerals, Your Detector and Gold • The Robinson Mine—Big Things Happen Here • Forty-Six Nuggets • Customizing Your Dredge • Small Miner Beats Forest Service in Court • Using Vegetation and Soil Conditions as Prospecting Aids • Green Valley Reconnaissance • Gold Pour Signals Revival in the Mother Lode • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices