October 2017 by Dave Taylor
Within this area, about two million ounces of gold and fifty million ounces of silver have been mined. Faults, dikes, veins and fissures that carry the ore form a concentric radial pattern—like spokes on a wagon wheel—around the caldera core.
I would first like to mention that I am not a geologist. I have, however, spent the last 8 years intently searching for gold nuggets with a metal detector. I have found gold in numerous locations, and in several different types of gold deposits.
Digging in the right spots will produce excellent results, like this group of nuggets taken by the author while metal detecting during the last few months. The biggest nugget is over an ounce.
These days they employ the use of metal detectors and carefully scan the shattered rocks, hoping to hear that sound we detectorists love to hear.
Take a look at the picture—it’s pretty simple and you can build it yourself.
I pulled out the nuggets I had worked on previously and looked at the size of the wire basket that the items to be cleaned are placed into. It looks much like a miniature french fry deep fryer.
Most prospectors understand placer mining a lot better than hard rock mining and don’t realize the amount of work that goes into processing different types of hard rock ore.
The Bawl Mill • Legislative and Regulatory Update • Ask The Experts - Where should I get my geology degree? • Ask The Experts - How much rock shall I crush to determine the value? • Placers Directly Associated with Lode Deposits • Is It Time for a Change? New Ways to Find More Gold • MMAC Update • Procuring Mine Owner Permission at a Mine Site • Champions Crowned at the California State Gold Panning Championships • Drywashing for Fine Gold • ICMJ Gold Prospecting and Mining Summit Postponed • Kennecott Copper Mine, Kennecott, Alaska • High Prices for Gold, Silver & Copper: What Does it Mean for Prospectors? • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices