Hard Rock 101: Micro Blasting
July 2020 by John Norman
Micro blasting can be used to take down hanging rock, separate minerals from overburden, and collect gemstones and other high-value product with minimal damage.
Picking the right spot to placer has to do with years of experience, and a little luck. The textbooks can tell you where it should be, but sometimes the rules just don’t seem to apply.
Their rewards were far better than they had anticipated, resulting in one of the best clean-ups they had ever seen.
Sanders claimed he used ground-penetrating radar to survey his private property in Nevada County, California, and uncovered the chunk of gold with a backhoe when he was following up on one of the anomalies found by the radar.
You might think that gold prospecting techniques are basically the same everywhere, and in many instances you’d be correct. Some geographical locations, however, due to their unique geological conditions, present unusual challenges...
The nugget sat there in plain sight, though it was covered in dirt, while hundreds of people had passed that way every day.
A week later, a small team of us hit it again, and this time the gold really showed up.
The Bawl Mill • Ask The Experts - Can GPR be used for lode prospecting? • Ask The Experts - How do I extract gold from pyrite? • Ask The Experts - Should I dig faint sounds with no indicator bars while detecting? • Ask The Experts - Should the detector sound on iron and nickel in a gold area? • Sluicing and Detecting Downstream • Tips and Tricks • Gold Prospecting for Better or Worse: Does Caliche Grow? • 10 Keys to Prospecting Like A Pro • Polymetallic Skarn Deposits • Practical Advice for Milling Hard Rock Ores • Speed Prospecting for Hard Rock Gold • Forrest Fenn Treasure Chest Finally Found? • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices