Polymetallic Skarn Deposits
July 2020 by Dean Delahaut
Polymetallic skarn deposits are an interesting class of deposits that can contain a number of different types of metals.
Once all the numbers from all the samples and water tests are compiled, a snapshot of the performance of each tank in the process circuit can be seen side-by-side.
One of his friends had 700 feet of small-gauge mine track and a hundred-year-old track bender laying out in his back 40; plus he also wanted to join the team. Perfect.
For more than 40 years, iron ore prices have been decided by private negotiations conducted between the largest of the iron miners and the largest steel producers. These two sides dominate both the spot and contract iron ore markets.
In processing gold, silver and other valuable ores, the minerals containing the values, such as metallic gold, silver-bearing sulfides or other minerals, must be freed from the surrounding host rock before those valuable minerals can be captured.
The lake is at the southern tip of the San Andreas Fault, which has shifting tectonic plates that bring molten material closer to Earth’s surface. The only other part of the US known to have more geothermal brine available is on the fault’s other end in Northern California.
For this article, I am focusing on industrial production plants that can handle 10 cubic yards per hour or more and would be fed by a loader or other heavy equipment...
The Sierra Mojada Project lies within a historic high grade silver, lead and zinc mining district originally discovered in 1879.
The Bawl Mill • Ask The Experts - Can GPR be used for lode prospecting? • Ask The Experts - How do I extract gold from pyrite? • Ask The Experts - Should I dig faint sounds with no indicator bars while detecting? • Ask The Experts - Should the detector sound on iron and nickel in a gold area? • Hard Rock 101: Micro Blasting • Sluicing and Detecting Downstream • Tips and Tricks • Gold Prospecting for Better or Worse: Does Caliche Grow? • 10 Keys to Prospecting Like A Pro • Practical Advice for Milling Hard Rock Ores • Speed Prospecting for Hard Rock Gold • Forrest Fenn Treasure Chest Finally Found? • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices