Friday, November 28, 2014

Sluice box: an essential element of your gold recovery system

The design of your sluice box is essential to the success of your mining operation. Use the right miners moss for your gravel, make sure the length of the box is appropriate to the mineral size you are expecting, and always keep a close eye on the water flow.

My buddy Pete and I are building some 8 ft wide sluices for one of my projects a couple of years ago. Panels like these are quick and economical to build.

Sluices have been the mainstay of most mining operations worldwide.

I strongly recommend using them wherever possible using P.E. Randy Clarkstons recommendations that he conducted in the Klondike placers in the late 1980's.

While sophisticated systems can and do increase recovery rates on some projects you need to keep close track of diminishing returns on your project.

I have found that the down time, and maintenance especially in primitive areas need to be addressed constantly or your overall recovery can be compromised.

Learn more - visit my web site - click here.

Tuesday, November 25, 2014

Placer Mining: Understanding Geological Structure

Placer Mining: Understanding Geological Structure
This is a center cut on a gulch placer we were working here in western Montana years ago. At the time of this photo, we were getting ready to move onto the bench placer in the upper left of the photo.
On the upper right you can see the drain ditch doing its job perfectly.



Understanding the geological structure will enhance your mineral extraction strategy. I was fortunate enough to be trained by the best of the best, old timers who had been mining all their lifetime. What they taught me is pricelss hands-on experience. That is what, I think, every successful miner has to develop - the hands-on experience.

Keep in mind, you are always trying to achieve digging dry gravel. In reality, most of the time you will have water issues of one kind or another.


Check out my web site - click here.

Friday, November 21, 2014

Hydraulic mining in Venezuela for Diamonds

Hydraulic mining in Venezuela for DiamondsI have found a few extraction operations using hydraulic mining in the Venezuelan jungle. The local Diamond miners were the first in this area. It is always a good idea to see what the local miners are doing and get an idea to what you are going to be up against. This was a particularly rich area in central Venezuela near where we were exploring and later set up a Diamond recovery plant.
Hydraulic mining in Venezuela for Diamonds
The photos here are a hydraulic Diamond operation I stumbled upon deep in the central part of Venezuela. We heard of a La bullia (a shout) meaning a new Diamond discovery has been found, several miles away from our camp. We embarked on a stiff hike, navigating the spiderweb of jungle trails heading deep into the jungle.

Still a couple of miles from the area we could hear the unmistakable rumble of a Venezuelan water pump. These water pumps are usually an old air cooled engine and a home made pump coupled together with strips of carefully cut tires to attach these incredibly reliable machines together.

If you want to truly understand hydraulic mining, this is the place. I  worked the nozzle and the little gravel pumps they had for hours and hours to get hands on experience. It was pretty cool.   Visit the web site to get more information - click here.







Wednesday, November 19, 2014

Gold in the sluice box

Gold in the sluice box, riffles and miner mossAlluvial engineering at is best,  when you see the results like this at the end of a shift.

That is the way it needs to look - gold in the riffles at the end of the day. I use expanded metal riffles on most of my plants with good results.

Hydraulic riffles are another strategy for placer mining which I have had success with.

The right miners moss is an essential ingredient in making your placer mining formula a success.

Check out my web site to learn more - click here.

Thursday, November 13, 2014

The close of another mining season ..... (video)

Well, I am back in town now and working to get the office under control. I get a kick outta this video, it's pretty much sums up what it's like to be back "at work" ....