The 10-Ton Boulder: Expanding Grout Demolition
April 2021 by John Norman
Imagine you have located a source of virgin placer ore containing immense gold value. Now imagine that there is a 10-ton monolith of extremely hard gneiss in between you and payday.
This year was a test. We had never done anything like this before, yet we grossed $30,000 in the short time we had to mine.
The problems of the submersible dredge tube are addressed by the subsurface dredge, where the enclosed sluice recovery tube is suspended from a flotation assembly...
There are times when being able to recognize a type of rock can make you a much more successful prospector.
These days they employ the use of metal detectors and carefully scan the shattered rocks, hoping to hear that sound we detectorists love to hear.
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.
…it was immediately evident the previous owner had not been using a detector. During just a few months of working the dumps part-time, he recovered gold in quartz specimens valued in excess of $40,000.
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.
The Bawl Mill • Ask The Experts - What is the “blue lead?” • Ask The Experts - Can an Ohm meter find gold in pyrite? • Ask The Experts - Can you tell me about this mining district? • How Deep Can That Detector Go? • Simple Mine Surveying With Basic Hand Tools • Dredging Do's and Don'ts • Emails Confirm--FBI Was Looking for Gold at Pennsylvania Dig Site • Gold Prospecting for Better or Worse: Tuck and Roll • Preparing For The 2021 Mining Season • Drywashing for Desert Gold—Part III • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices