The Verde Copper-Gold-Silver-Zinc District, Jerome, Arizona
October 2012 by W. Dan HauselWhen I was a student in the College of Mines at the University of Utah, the Verde district was used as an exploration model for “submarine volcanogenic massive sulfide deposits.” So I looked forward to visiting this district and the town of Jerome in central Arizona in the spring of 2012.
The specific gravity of chalcedony is 2.58 to 2.64. This is slightly lower than coarsely crystalline quartz because of slight porosity in chalcedony. Being so light, it will easily wash out of a gold pan.
For approximately 30 years, the mines produced good ore, some so rich it was simply sent straight to bagging, bypassing milling and loaded directly on the rail cars.
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.
For the prospector, knowing what oxidized hydrothermal alteration looks like in the field is an important exploration tool.
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
In this review of precious and base metal deposits in Arizona, it is apparent that several significant mines and mineral deposits occur in eastern Arizona, and there is considerable potential for new discoveries.
He found 5 to 7 feet of gravel containing half an ounce per yard. This started a rush of placer activity and several other shafts were sunk, with some large multi-ounce nuggets being found.
The Bawl Mill • Our Readers Say • Ask the Experts • Ask the Experts • Cold Alaskan Gold—Part II • Dredging Backwards? • Tips for Detecting Old Hydraulic Pits • Recluse Died with $7 Million in Gold • California State and US National Panning Championships • A Data Miner Builds A Power Sluice • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices