Gold in Rotten Rock
February 2004 by Edgar B. Heylmun, PhDRotten rock (saprolite) can be found in all warm, humid regions, but is best developed in humid, subtropical climates, like that found in the American South. Outwardly, it looks like bedrock, but upon closer inspection, it can be seen that roots penetrate it and that it can be worked with a shovel or hydraulic monitor.
• Battle continues in the "Golden State"
• California Water Board needs your comments
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.
Mining is coming back to Leadville, at least in spirit.
This is the primary geological and mineral assessment agency in the US. Part of the Department of the Interior, the Geological Survey, often just called “The Survey” or USGS, has been in business since its founding in the 1800s. This means you can obtain publications all way the back to the early days of the survey...
With successively lower temperatures as the water mixture cools, new sets of minerals are formed and many of those stable at a higher degree of heat became subject to alteration as the temperature progressively moved lower.
The Bawl Mill • Our Readers Say • Buying or Investing in Mineral Properties • The Joy of Prospecting • Company Notes • Picks & Pans: Rattlesnakes in a Gold Camp • Old-Time Mining Geology Books • Ask the Experts: Recommended Reading—Part I • The Tangential Impulse Water Wheel in California Gold Mining History—Part I • Consider Adding Gold to Your Portfolio • US Files Charges Against Gold Refiner • Gold in Australia • Restoring the Rule of Law to US Mining • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices