How To
Ask The Experts
May 2016 by Chris Ralph
• How small should I crush my hard rock ore?
Volume is the Key to Success
While recovery rates are important, they must necessarily be secondary to the volume of material processed. Running more material at lower recovery rates is generally preferable to increasing the efficiency of the system.
How to Stake Your Own Mining Claims—Part I
Many new prospectors start out prospecting in public areas and club claims, and this is perfectly fine, but the next step in the progression of becoming an experienced prospector is to locate and stake your own mining claims. Lode or Placer: What Difference Does It Make?
This explains the large difference in particle sizes between placers and hydrothermal lode deposits, but also means that while the mining may be similar in some cases, the sampling and recovery techniques are usually quite different.
How to Interpret Assay Values
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.
Alternative Gold Leaching Methods
The ideal leaching chemical would leave behind what we don't want or need in the ore and take only the valuable metals.
Ask The Experts
• Making a noisy dredge more quiet
Piggin' for Gold
Take a look at the picture—it’s pretty simple and you can build it yourself.
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