Imagine you have located a source of virgin placer ore containing immense gold value. Now imagine that there is a 10-ton monolith of extremely hard gneiss in between you and payday.
…there is an easy way to create a reasonably accurate map without any fancy instruments.
After paying for the mine fleet, mill capital, supplies, fuel, power and labor, at today’s metal prices, does this mine make a profit?
Rivers are not just random and accidental; streams and other drainages are what they are because of the forces of erosion acting on the bedrock.
There is a material processing principle widely used in large milling operations to improve recovery that is poorly understood by most of the micro-mining and prospecting community...
After a short time, the tailings pile can get very large, and can actually block the downstream end of the sluice box.
They… create negligible fumes and much less fly rock than blasting. Below are some tips on maximizing your effectiveness with these tools.
I’ve been following the precious metals for decades, and I haven’t seen a move this powerful in many years.
How big is the deposit? Are there boulders you will need to move? Do you just want to recover the nuggets or do you think there is good fine gold that you will also want to capture?
From this I inferred that engine 2 had a carburetor problem. In this article, I discuss the specific engine/carburetor problem, and the surprising solution to this problem.
For simplicity, I will assume that you wish to make enough profit so that you can comfortably pay your bills using just the profits from the mine.
The more experienced prospectors know these lesser known spots are the types of places where big finds are still made.
For the prospector, knowing what oxidized hydrothermal alteration looks like in the field is an important exploration tool.
…as an academic argument, when mated to the appropriate engine, is the pump really moving water at the rate of 400 GPM?