Cyanide-Free Gold Separation
February 2011 by Chris RalphSome ores—mostly those with a high free gold content—are very amenable to gravity concentration. Well oxidized ores containing coarse gold are usually best for non-cyanide processes. Ores with significant sulfide content may require the...
If there is misleading wording anywhere, it will be in the sample data and in reserve/resource estimates.
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 Nevada Senate introduced SB108 in 2009 to prohibit PVC piping utilized by miners to stake mining claims.
In part one of this two-part series on gold in Guyana, I describe artisanal mining efforts currently winning alluvial gold from small-scale placer operations located along the lower Puruni River and its tributaries.
...your sampling procedures should not be designed to catch gold your mining technique will never recover.
In some places, semi-continuous sections of riverbed can easily be linked in many places to identify the path of the ancient rivers.
Let’s set up a thought experiment: Suppose you had some material that ran one ounce per ton gold, which is generally considered high grade to fantastic grade depending on the circumstances.
The Bawl Mill • Our Readers Say • The Basics of Crushing and Milling Operations • Ask The Experts—What minerals are magnetic? Can rare earth magnets capture platinum? • Ask The Experts—Jet nozzle or suction nozzle? Which is best for my highbanker? • Ask The Experts—Precious metals in water? • Rediscovering Placerville, California • Eastern Arizona: Gold and Base Metal Deposits—Part I • Over The Divide—Daryl J. Nelson • Legislative and Regulatory Update • Mining Stock Quotes & Mineral and Metal Prices • Melman on Gold & Silver