Ask the Experts: VMS ore
August 2012 by Chris RalphQ: Are there any mills that handle VMS ore?
When my field assistant Jay Roberts and I entered the mine, it appeared as if someone just walked out of the mine, turned off the lights and never returned.
The area was mined intermittently from around 1900 to 1915, but was also mined in the late 1800s, with a total output valued at about $100,000, which is around $9.5 million at the current gold price.
The truth is that cemented gravels are really not all that complex. There is no mystery of how gold grew there or somehow wormed its way into these solid gravels.
Gold is a fairly widespread mineral in the Italian Alps and in the Northern Apennines. It is found both in primary mineralization and in past and recent floods.
It was the middle of winter and the valley was covered in snow, making prospecting a matter of sinking shafts in the ground.
In this second part on cobalt, I will take a look at the various types of cobalt deposits and how you can prospect for them. Who knows—perhaps the next big cobalt strike will be yours.
An example of some of this extraordinary ore was a lot of about four tons from the Florence mine during the last days of a lease that averaged over 300 ounces of gold per ton.
The Bawl Mill • Ask the Experts: Something for everyone... • Ask the Experts: More suggestions for dealing with metallic trash.... • Ask the Experts: various mining courses • Sniping for Gold • Gold in Guyana—Part II: Process Optimization at Sacre Coeur Minerals' Lower Puruni Alluvial Mining Project • Following Clues to an Old Mill and Vein Strike • Small-Scale Miners Rock the Mining World • Big Rock Gold • Still Gold in Humbug, Arizona • Never Take Safety for Granted • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices