November 2018 by Matteo Oberto
The gravels in contact with the bedrock or false bedrock base are often the richest. The same facts apply to the alluvial paystreaks that are formed on gravel bars; the lowest level of the gold-bearing gravel is normally the richest.
The excitement over IOCG deposits began with the discovery of a monster deposit at Olympic Dam in Australia in 1976. The discovery was accidental as the operator was searching for strata-bound copper deposits.
Sylvester Smith and his younger brother Nathan were among this group who rode and led their Indian ponies, while climbing the rugged Salmon River breaks and rockhewn mountains, looking for a path that would lead them up and over the uncharted wilderness.
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.
Gold has always been noted to have an affinity for quartz to such a degree prospectors almost always dig on quartz veins in a search for the precious metal.
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
While the bullion value of the nugget is already substantial, the size and rarity of the Ausrox Nugget combine to make its worth invaluable in the collector market.
The holes were overloaded with explosives, but I didn’t know it. I was just a green mining engineer fresh out of school and told to watch as the experienced miners set the charge.
The Bawl Mill • Ask The Experts - Skim Bar Placers article clarification • Ask The Experts - Is LR2000 working correctly? • Ask The Experts - What claim papers am I required to file at the county level? • Fall Drywashing—Just the Right Time of Year • Humble Beginnings • Understanding Large Gold Deposit Types: Discovering New Mines • Roads to Nowhere • Treasure Hunters Challenge FBI Over Dig for Civil War Gold • Out of the Ashes—New Access to Gold • Arizona Prospector Rescued from Mine Shaft • California State and US National Gold Panning Championships • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices