Small Mining Operations
Cyanide-Free Gold Separation
February 2011 by Chris Ralph
Some 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...
Additional articles that might interest you...
Customizing Your Dredge
January 2013
I am going to suggest dozens of ways you can increase suction power, dredge to greater depths, and improve recovery methods in your sluice box.
I am going to suggest dozens of ways you can increase suction power, dredge to greater depths, and improve recovery methods in your sluice box.
Ask the Experts
May 2014
Setting up a gravity dredge
Setting up a gravity dredge
The Highs and Lows of Drywashing
August 2016
We were met with a plethora of mechanical problems with the dry washer and even a few with the excavator that were at times frustrating, but we were in this for the long haul, so we needed to solve these problems and move forward.
We were met with a plethora of mechanical problems with the dry washer and even a few with the excavator that were at times frustrating, but we were in this for the long haul, so we needed to solve these problems and move forward.
New Research Tool for Miners in Wyoming
September 2018
The Wyoming Geological Survey released an online interactive map...
Prospector's Guide to Rock Breaking and Blasting
December 2016
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 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 Basics of Froth Flotation
June 2015
I thought it might be worthwhile to take a look at the basics of this important mineral separation technique and how a miner can use it to recover the values out of an ore.
I thought it might be worthwhile to take a look at the basics of this important mineral separation technique and how a miner can use it to recover the values out of an ore.
From Curiosity to Mine Owner
August 2015
His brother’s friend showed him a vial of gold that originated from his family’s mine in Honduras. Within two weeks Ernie had flown to Honduras to get a first-hand tour of the historic mine and the primitive operation underway to recover the gold.
His brother’s friend showed him a vial of gold that originated from his family’s mine in Honduras. Within two weeks Ernie had flown to Honduras to get a first-hand tour of the historic mine and the primitive operation underway to recover the gold.
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