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Bench Tips: Making Homemade Wax
By Bob Rush
In my two most recent columns, I discussed the process of using flexible wax and a homemade wax pen to draw the...
Mineral Monday: Mimetite
By Antoinette Rahn
Mimetite may be considered a minor ore of lead when present among extensive lead minerals, but it is a major mineral in...
Rock Science: Flame-Fusion Rubies
By Steve Voynick
Medieval alchemists failed in their attempts to transmute common materials into precious ones. But as it turned out, their visions of transmutation,...
Earth Science In the News: Earthquakes Strike Worlds Old and New
By Jim Brace-Thompson
As March headed into its second half, a pair of earthquakes of similar magnitude struck almost back-to-back in both the New World...
Visiting Jerome, Arizona
By Helen Serras-Herman
The town of Jerome was founded in the late 19th century on top of Cleopatra Hill of the Black Hill Mountains. The...
Business Spotlight: Covington Engineering
By Antoinette Rahn, Managing Editor
From the Editor: We are connecting with our regular advertisers during this time of self-quarantine in light of the COVID-19...
The Minerals of Pre-Columbian America
By Steve Voynick
The great pre-Columbian Native American civilizations—the Olmec, Maya, Inca, Aztec, and the gold-working cultures of Colombia—left behind as their material legacy a...
Rhodonite
By Bob Jones
Deep in the Central Ural Mountains of Russia are two deposits of rhodonite where solid pink to red lapidary material has been...
Earth Science In the News: The Smallest Dinosaur? Maybe, Maybe Not!
By Jim Brace-Thompson
Captured in a time capsule of amber, it measures some seven millimeters long, or just a quarter of an inch, and is...
Business Spotlight: Kelley’s Kaleidoscope
By Antoinette Rahn, Managing Editor
From the Editor: We are connecting with our regular advertisers during this time of self-quarantine in light of the COVID-19...
