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Sampling Mineral Deposits
March 2007 by Staff
The accurate sampling of mineral deposits for testing and analysis is perhaps the most important step involved in both mineral exploration and development. It is a critical factor in initial prospecting efforts and the preliminary investigation of grassroots exploration projects, yet sampling is often performed in a haphazard and incomplete fashion during the early stages of prospecting and exploration activities.Revisiting the Rocker Box
The first location we worked was a small, dry ravine cutting through many mineralized zones in an area where some hard rock mining had taken place in the past.
The Montanore Copper and Silver Project
This adit will be nearly 3.5 miles long when it reaches the ore zone.
Early Winter Detecting in the Sierras
The mine site consists of river gravels from an ancient channel covering over 20 acres, and the place is covered with very large river rock and small tree overgrowth.
A Word from the Editor
I've received a few letters over the past year regarding assays and assayers. Most wanted to know how to tell the good ones from the bad. You'll find most of these questions answered by Ralph Pray in his article, "Fake Assays and Assayers," in this month's issue.
High Court to Reconsider Wilderness Water Rights
The Idaho Supreme Court agreed on November 30 to reconsider its controversial split decision to award the federal government the rights to all unappropriated Salmon River water flowing through three central Idaho wilderness areas.
The Rocks That Burn: Is Oil Shale the Answer?—Part I
The day is old in the Rangely Oil Field in northwestern Colorado. I’ve paused in my southbound trip to take a gander at this historic field, one of the largest in the state. Intricate pipelines funnel water and carbon dioxide to the source rock far below.
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Submitted by Jeff Harris
Executive Director
People for the U.S.A.
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The Bawl Mill
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