The Tangential Impulse Water Wheel in California Gold Mining History—Part I
February 2004 by Guest WriterThe modern tangential impulse water wheel, a device best suited for hydroelectric power production where high water head is available, is an ingenious device born in the historic gold mining industry of California in the 19th Century.
It took me awhile before I finally got a nice mellow signal. My nugget turned out to weigh in about two dwt (pennyweight). Over the next few hours, we all picked up a few more nuggets apiece.
• Take a seat
• Hold everything!
• Flying under the radar
• Last minute spending spree
Most prospectors learn early that pyrite is fool's gold...but the truth is it can be an excellent indicator mineral for gold and in many cases does contain small amounts of gold.
How much is that old Mining Journal worth?
Excerpts from California Mining Journal, our original title, published 50 years ago this month.
Alaska’s mining industry posted a record-breaking year in 2006, largely because of the high prices for zinc and other metals, state officials said.
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 • Consider Adding Gold to Your Portfolio • US Files Charges Against Gold Refiner • Gold in Australia • Gold in Rotten Rock • Restoring the Rule of Law to US Mining • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices