We’ve been discussing the many methods of extracting gold from the earth and the various places to do this. We slightly touched on gold sluicing when talking about dredging.
But right now we will delve more deeply into the topic of gold sluicing. So what is this gold sluicing concept about? What technologies does it require? Is it something that an individual can do or does it take a team and some substantial money to get it together? Let us look further…
When we talk about gold sluicing, we are still talking about mining placer deposits. These are the spots where loose sediment collects and only the heavy stuff, as in gold, doesn’t get washed away. Gold sluicing has been a pretty common method of mining and prospecting since the beginning. Basically what a sluice box is, is a man made channel for water to flow through. The reason it needs to be man made is so that man could design the “ripples” for lack of a better word, or speed bumps even, on the bottom of the channel.
How Gold Sluicing Works
So what happens is these speed bumps cause a velocity dead spot for the water that you run through the channel. Gold and light sand is being washed through the channel and the heavier elements and valuable stones get caught in the dead zones where it is much easier to collect. It does the separating and panning for you!
Using Trommels with Gold Sluicing
One last thing is that people will use trommels to help make this entire project go faster. A trammel basically only lets smaller earth fall through and forces big rocks out elsewhere where they can be hard rock mined if you wish. But what we are talking about is a spnning cylinder with holes in it. This way you can just push the dirt into it with a bulldozer or some other heavier machinery to make life that much easier. This happens before gold sluicing. All that makes it through the trommel holes goes into the sluice. It’s a beautiful process. Gold sluicing is a great way to pan out a massive amount of soil quickly.