Ask The Experts - Were there any productive mines where there were no contacts?
September 2021 by Chris Ralph
Frogs' extinction from fungus
Q: Is there a special name for this silver and copper alloy?
Q: I would like to know how to use a classifier when I dump my gravel into my sluice box. I would also like to know what sizes classifiers come in. I know that they are in sizes like -3/4. What does the “minus” in the size mean? Thanks for any help you can give me.
The Bawl Mill • Ask The Experts - Would a platinum nugget contain all the PGMs? • Ask The Experts - Can you clarify how many minerals I need to identify to be successful? • Commercial Placer Mining: Alaska Style • Indicators and Hillsides • Surviving the Unexpected • Gold Placers of Southern California • Gold Prospecting for Better or Worse: Throwing Away Thousand-Dollar Hot Rocks • 3D-Printed Tools for Prospecting • Libby, Montana Prospectors Keep Tradition Alive • Colorado Miner Sues EPA Over 2015 Spill • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices