The Basics of Geophysical Exploration
February 2012 by Chris RalphIn developing a mineral property or mining claims, one of the first goals is to identify and quantify valuable deposits. The classic method of doing this is by drilling holes into the ground to sample what is below the surface. The problem is that one or two holes usually are not going to tell you a whole lot...
Evaluating Gold Recovery with Mass Balance Calculations
Whether you are placer or hard rock gold mining, maximizing the efficiency of your recovery process is very important to success, and accurate testing is necessary to do so.
Refractory Gold Processing
After your excitement peaks when you first receive the high gold assay from the vein you just exposed, you ponder how you will extract and sell your gold. You will need to develop a flow sheet for your process to optimize your recovery and minimize your costs and permit requirements.
How Should I Work This Prospect?
How big is the deposit? Are there boulders you will need to move? Do you just want to recover the nuggets or do you think there is good fine gold that you will also want to capture?
Ask The Experts: Equipment to break up heavy clay
Q: I am looking for a “trommel machine” that doesn’t separate anything but clay slurry from rock hard clay.
Small-Scale Hard Rock Mining With Water Recycling
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.
Using Google Earth and Other Maps
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.
The Basics of Exploration Leases and Contracts—Part II
This is the point where you might ask, “What do these types of contracts typically look like and how are they negotiated?” Well, that is the topic of this month’s article.
The Bawl Mill • Ask the Experts - ...Worth further investigation? • Ask the Experts - Processing sulfide ore without mercury or cyanide. • Regarding "Good Assays and Bad" • New "Employment" Category • 4 Keys to Successful Nugget Hunting • A High Price to Pay • Eolian Placer Gold • All the Gold Ever Mined... • Targeted for a Tax Audit • Feds Order Closure of Idaho Mine • Trying Out the New Highbanker • A Gold Mine on a Washington Beach? • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices
Ask the Experts - Old workings & tailings: What are my options? • Legislative and Regulatory Update