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What to Cut: Mexican Peanut Obsidian
By Russ Kaniuth
Mexican Peanut obsidian was discovered in the 1960s near Alamos, Sonora, Mexico. In recent years it’s become exceedingly scarce as it has...
Volcanoes Continue Capturing Headlines
By Jim Brace-Thompson
In the first half of 2021, I reported on one volcanic eruption after another. Well, it looks like I’ll be continuing to...
A Sea without Sharks?
By Jim Brace-Thompson
For hundreds of millions of years, sharks and oceans have gone together like salt and pepper, ebony and ivory, bread and butter,...
Research Plots near Mount St. Helens Threatened by a Road Project
By Jim Brace-Thompson
A new U.S. Forest Service (USFS) road project near the notorious Mount St. Helens stratovolcano in Washington is in the planning stage....
Volcanic Eruption Surprises Villages in Congo
By Jim Brace-Thompson
Watching the nightly news on television, I was startled by reports of a volcanic eruption near the major city of Goma (population...
Sublette County Rock Hounds Setting the Show Stage
By Antoinette Rahn
The Sublette County Rock Hounds group is a relative newcomer when it comes to the world of formal rockhound organizations, but its...
Just How Deep Is Our Dust from Space?
By Jim Brace-Thompson
Are you frustrated by how much dust builds up inside your home? Frustrated by endless sweeps with dust mitts, vacuums, and feather...
Exploring Legendary Hard-to-Find Gold and Silver
By Bob Jones
Gold is a native element that resists forming mineral compounds. Of the several gold compounds, only two are sometimes available to collectors:...
Weird Words: Dendritic
By Jim Brace-Thompson
Editor’s Note: Please enjoy this unique vocabulary lesson via our R&G Kids column.
Mineralogists have a habit of taking a simple concept and...
Meet Geldingadalir: Iceland’s Newest Volcano!
By Jim Brace-Thompson
Iceland is an island nation sitting directly astride the Mid-Atlantic Ridge. This ridge is an extremely long crack in the Earth’s shell...
