Ask the Experts
December 2012 by Chris RalphWhat is the best type of mat to use in a high banker set up?
Before going into an analysis of the ore composition, two other major factors will affect the result. These are the accuracy of the assay and the effectiveness of the mill for the gold recovery.
This assay system of ounces per ton sounds simple enough, but the use of the metric system and the additional measuring terms of “grams per ton” and “parts per million” (ppm) has created some misunderstanding of ore value.
The first and most important thing of the sampling process is to try to be as unbiased as possible. There is a natural tendency to select rock that looks the best—even unconsciously.
• Determining the amount of gold in a specimen
Rivers are not just random and accidental; streams and other drainages are what they are because of the forces of erosion acting on the bedrock.
Last month, one of our readers requested an article regarding the possible use of Google Earth for prospecting research. It was a good idea, so here it is.
So far this year we have recovered over three pounds of gold and the hard rock veins seem to go on forever. We now have three claims that can produce good enough gold to set up a productive operation.
The Bawl Mill • Legislative and Regulatory Update • Prospecting for Gold at Green Valley • Extraction of Precious Metals Using Froth Flotation • Detecting Old Ground Sluice Locations • Mineral Deposit Trends: Real and Imaginary • Four Arrested for California Mining Museum Heist • Scams, Scammers and Schemes • Lawsuit Update From the New 49'ers • Constitutional Sheriffs Standing Up for Our Rights • What's Left Behind • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices