Small Mining Operations
The ABCs of XRF
May 2021 by Ron Kliewer
Fast forward to present day and the XRF has come of age. Pull the trigger on the hand-held device and you get a nearly instant assay of the surface of a rock.
Gold Deposits of Montana
Historically, Montana has been an important gold producer, in terms of both lodes and placers, and it still produces gold for the prospector today.
Setting Up A Placer Operation
Trommels come in two basic sections. The first section is called the scrubber unit. The second is the punch plate, where the gravels and ore of a specified size drop out into a variety of sluice box recovery units.
Prospecting for Copper—What to Look for on the Outcrop
For the prospector, knowing what oxidized hydrothermal alteration looks like in the field is an important exploration tool.
How to Use BLM’s New Mineral and Land Records System
This new map-based tool is far superior to the old version with lots of potential layers and information that a prospector can use in research.
Hard Rock 101: Blasting With Kinepak Explosives
Fortunately, there are products on the market that can address these problems and make a small-scale mining operation feasible.
Crushing Quartz in Calaveras County: A Placer Miner Learns New Tricks
I had never run an impact mill before, but anything involving rocks, water and a big electric motor sounded great.
A Third Generation Small-Scale Hardrock Revival
One of his friends had 700 feet of small-gauge mine track and a hundred-year-old track bender laying out in his back 40; plus he also wanted to join the team. Perfect.
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