Shaker Tables for Processing Hard Rock Ores
May 2017 by Chris Ralph
Most placer equipment is really made with gold in the 30 and larger mesh sizes in mind, though if carefully used can often get reasonable recovery down to the 50 mesh size.
I knew the nuggets got into the nugget patch somehow, I just had to figure out how and from what direction they came.
I had never run an impact mill before, but anything involving rocks, water and a big electric motor sounded great.
Sampling gold placers can be rewarding, but remember to treat the samples so you are not high grading or low grading your results. Learn the rules and apply them so your samples are accurate.
The anticipation of finding out if the system of snatch blocks, shackles, chokers, anchor points, and the strap binding the massive slab of rock in the bottom of the river would even budge an inch was weighing on me.
We panned out maybe three gold pans of the material and we were shocked at the gold that was there. This rock appeared to be rich.
There is reason to believe these stream valleys are still rich with gold, silver and copper.
The excavator or backhoe has become the tool of choice for testing placer ground. These machines are the best way to explore and sample a placer deposit if the ground is not too wet or frozen and bedrock is not beyond the reach of the machine.
The Bawl Mill • Legislative and Regulatory Update • Ask The Experts: How many claims can I file in Arizona? • Ask The Experts: What should I do with a large amount of old placer concentrates? • Becoming a Successful Detectorist • Hand Panning Micro-Fine Gold • Sampling, Hydro-Shocking & Cleaning Quartz-Gold Specimens • My Lucky Thirteen Nuggets • Crushing, Grinding and Pulverizing • A Break in the Weather • From the Editor • Prospecting Knowledge -- Pass It On! • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices • Over The Divide: Miles John Mitchell