Placer Testing with Large Samples
June 2000 by Dr. Ralph E. PrayOf all the difficult gold placer sites to evaluate, none can compare with trying to dig to bedrock through twenty or thirty feet of soaked overburden through which water is slowly seeping downgrade.
The naturally occurring white scouring powder called Old Dutch Cleanser, originally from Kern County, California, is a household helper known throughout America. As a sink, stove, and tub cleaner, the abrasive pumicite is one of...
Public Lands for the People is working on a Miner's Bill of Rights with the support of several members of Congress.
I have a large amount of precious metals, gold and silver, mixed in with lead. Cupelling is expensive. What method can I use to extract the gold and silver without cupelling?
Tired but satisfied after the first day dredging this season, I settled into my homemade oak camp chair. My eyes scanned the beautiful river, steep forested mountains and crisp blue sky, with the heat of the day fading.
The Bawl Mill • Our Readers Say • Guest Editorial—Unreasonable Interpretations • Ruling Awards Giant Nugget to Finder • Letter to the Editor • Traditional Adversaries Reach Agreement • The Gold Belts of Georgia • Company Notes • Gondwana Gold Gravels • Quick Thinking & Rescue Devices Save Two Lives • Picks & Pans: The Discovery Gulch Diggings • Prospector Finds Cache of Emeralds in North Carolina • My Old Carbide Lamp • Melman on Gold & Silver • Hands & Pans on the South Yuba River • Permafrost Tunnel Shows Cross-sections of Past • Mining Stock Quotes and Mineral & Metal Prices