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The Missing Water of Mars Not Really Missing after All?
By Jim Brace-Thompson
Researchers say that billions of years ago Mars was a lot more like our blue planet Earth in that it contained oceans,...
It’s “Back to the Future” for a “Waterworld” Earth
By Jim Brace-Thompson
In the movie “Waterworld,” actor Kevin Costner inhabits a post-apocalyptic Earth awash with water some 500 years from now. The premise is...
Trilobite of the Week: OLENELLUS fowleri
By Joseph "PaleoJoe" Kchodl
OLENELLUS fowleri is almost circular in shape. Its cephalon or head section is very large and broad and is the distinguishing...
Footprints in the Sands of Time Are Disappearing
By Jim Brace-Thompson
Ichnology is the scientific study of so-called trace fossils. Rather than direct remains of an organism (bones, teeth, carbonized leaves, etc.), trace...
On the Rocks: Ways to Grow the Hobby
By Bob Jones
Every mineral collector has a story about their introduction to collecting. Once they started collecting, they often followed a predictable pattern. Beginning...
Water Purification, Mayan Style
By Jim Brace-Thompson
Zeolites, such as stilbite or natrolite, are microporous minerals. In other words, they have extremely regular but rather loose pore structures at...
A Life Transformed by Picture Rocks
By George Lindsay
More than the raising of wheat and cattle or the breeding of quarter horses for work and racing, a new vocation has...
Food for Fuel and Fun: Grandma’s Easy Stew
By Antoinette Rahn
My late mother and grandmother were not stereotypical when it came to being grandmas. However, after speaking with various people in the...
Rock Science: Bismuth — Iridescence and More
By Steve Voynick
Among the most eye-catching items displayed at gem and mineral shows and rock shops are those familiar clusters of metallic “hopper” crystals...
Trilobite of the Week: CRYPTOLITHUS ulrichi
By Joseph "PaleoJoe" Kchodl
CRYPTOLITHUS ulrichi has a very broad Cephalon bordered by a wide “brim,” which has a large number of pits or holes....
