Small Mining Operations
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.
A New Method for Handling Stubborn Gravity Middlings
The solution focused on the relative difference in malleability between gold and waste, rather than the difference in density exploited by gravity circuits.
Prospecting Hard Rock
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.
Moving The Big Rocks
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.
The Smell of Gold—Part I
Some claim they can smell gold. This may be, but when I take a whiff of gold, I smell dirt, rotten eggs, garlic or just nothing: my nose is everything but sensitive.
Trip to “The Swamp” on Behalf of Small Miners
Besides the EPA issue, our major priority is to work on the proposed amendment to the National Strategic and Critical Minerals Production Act (S 145), a bill proposed in the Senate by US Senator Dean Heller (R-Nevada).
New Research Tool for Miners in Wyoming
The Wyoming Geological Survey released an online interactive map...
Resurrecting An Old Hard Rock Mine—A Series of Small Victories
…we cheered and high-fived each other as the ore cart slowly crested the top of the headframe, then picked up a bit of speed on the short downhill section and came to an abrupt halt, ejecting its contents of ore…
Subscription Required:
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
Free:
MMAC Update







