Small Mining Operations
Through the milling process, the rock must be crushed and the values extracted. Let’s break down our discussion into the different parts and elements of the mill…
Whatever system you plan to use will require a way to safely initiate the explosives from a distance. In this article, we’re going to learn the basics of electric blasting and get a hands-on example…
I have seen many samples taken originally with an eye toward getting the highest grades possible, but later someone claims that those results represent an average grade of the whole gravel deposit.
There are currently about 170 commercial-scale placer operations in Alaska. Most of these are small operations with just a few people working; they are often family affairs that operate seasonally only during favorable weather.
Located 23 miles south of Libby, the land surrounding the Libby Creek area has been of interest to prospectors since the early 1860s, when it was home to up to 600 miners working at a camp known as Libbysville.
There are three basic power sources for rock drills—electricity, gasoline and compressed air. Before we go into big pneumatic drills, we’ll start with a quick rundown of each.
Since last year’s articles on explosives for mining, several people have asked for more information about becoming a licensed blaster.
How rich does a hard rock ore have to be for it to be worthwhile to process and extract the gold?
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.
…to see the huge differences between the gold production amounts of the Western States, let’s look at the gold production—both hard rock and placer—of these 13 states up to the present.
Whether you are placer or hard rock gold mining, maximizing the efficiency of your recovery process is very important to success, and accurate testing is necessary to do so.
Prospectors often wonder why gold deposits in veins like it does. Why is one vein rich while another is barren, even though they are only a few hundred feet apart?
Starting small with quick profitability gives you a lot of financial elbow room plus real-world experience that can be used for final mill design.