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Gold Near Boulder, Colorado
July 1999 by Edgar B. Heylmun, PhD
Several mining districts near Boulder, Colorado mark the northeast end of the 240-mile-Iong Colorado Mineral Belt, which cuts diagonally across the Rocky Mountains.How to Prospect for Silver Field Tests You Can Use to Detect the Hidden Metal
Don’t bother eyeballing that rock for silver! Even if it’s high grade you’ll not see the familiar dime or quarter coin color. Native silver is almost as rare as brass ore. Well, if it’s so hard to find, is silver worth looking for? You bet! Just check the latest prices—and they may go higher.
I Just Tripped Over A Nugget
I metal detected a number of years before I saw my first nugget peeking out from the dirt before I had scraped or dug for it. This one was in the steep sidewall of a narrow, but deep drywash.
Introduction to Meteorites
The distribution of meteorites across the planet was, at one time, thought to be random and unpredictable.Reading A River: Understanding Erosion and Gold
Rivers are not just random and accidental; streams and other drainages are what they are because of the forces of erosion acting on the bedrock.
Natural Gold Alloys
Natural gold is never 100% pure; all natural nuggets contain at least some impurities. We're going to take a look at just what some of those impurities might be.
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