Commercial Blaster Training
May 2021 by John Norman
Since last year’s articles on explosives for mining, several people have asked for more information about becoming a licensed blaster.
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.
Old tailing piles extend for miles. There was still plenty of water flowing here, so WPA members set up highbankers at several settling ponds.
Once I have established the presence of gold in the sample, I collect five-gallon bucket quantities of the rock material for processing back at my shop.
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.
They worked their plan, bit by bit, and sure enough, after the blast, gold was detected… Over two pounds of beautiful crystalline gold was recovered in that stretch!
It’s not easy to figure out what is best without testing, and so a certain level of confusion has developed about how small the ore ought to be crushed.
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 • Ask The Experts - What is oxide gold? • Ask The Experts - Can you recommend settings for a Gold Bug 2 in Vermont? • Ask The Experts - Where can I market my gold property? • Ask The Experts - Is there a detector for locating fine gold? • Pinpointing for Gold • How Rich Must My Ore Be? • Gold Prospecting for Better or Worse: All Shook Up • The ABCs of XRF • Gold Circle (Midas) Gold District • How to Find Prospects That Others Missed • Gold 1822 Half Eagle Fetches Record at Auction • Utah Tellurium Mine Creates New US Supply of Key Mineral • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices