How To
Ask The Experts
December 2014 by Chris Ralph
• Determining the amount of gold in a specimenWhere Should I Start?

Small-Scale Concentrating and Recovery Methods

Tips and Tricks
I cleared the connector by poking a small Phillips screwdriver through it. To ensure the bore was clean, I dunked the connector into some water and then blew it clean with my shop air compressor.
What To Look For—And Look Out For—In A Placer Mineral Report

Using Countercurrent Material Flow to Improve Gold Recovery Efficiency
There is a material processing principle widely used in large milling operations to improve recovery that is poorly understood by most of the micro-mining and prospecting community...
Placer Channel Sampling

Practical Advice for Milling Hard Rock Ores
The problem is that extracting gold from hard rock is often a lot more difficult than processing placer gravels. Still, there is some very high-grade ore out there in many old mining areas.
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