Ask the Experts: VMS ore
August 2012 by Chris RalphQ: Are there any mills that handle VMS ore?
Confluences of placer streams are well known as concentration sites for heavy minerals. The basic reason is that...
Trinity County is located in the far northwest corner of California and stirs up many different memories for those who have been there.
From time to time I’ve been doing a series on critical metals and how important they are to our complex and technological society. This month we are going to take a look at copper, and how important that metal is to our modern lives.
The faulting, folding and shearing that occurred in the Mother Lode belt has created zones of structurally weak rocks or contacts between different types of rock, which has been favorable for the deposition of gold bearing ores.
The periodic exploration efforts for nickel during periods of high prices have been sporadic and incomplete. There is a role for the prospector and geologist in searching laterites potentially rich in nickel and mafic igneous bodies that may be rich in nickel.
The majority of the gold produced in Goldfield has come from ores that are close enough to the surface to be oxidized by the air. This oxidized ore is normally a soft, shattered, earthy material usually stained yellow to brown by oxides of iron.
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