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De Colores: Boleo, Baja
Editor's Note: This is one of 10 Mexican locales recognized for mineral production. View the rest of the list as featured in an article...
Friday Find: Moroccan Quartz
By Antoinette Rahn
The past few days I've come across a number of reports about minerals mined in locales throughout Morocco. This brought to mind...
De Colores: Naica, Chihuahua
Editor's Note: This is one of 10 Mexican locales recognized for mineral production. View the rest of the list see >>>
The Naica mine...
De Colores: El Tule and La Ilusion
Editor's Note: This is one of 10 Mexican locales recognized for mineral production. View the rest of the list see >>>
El Tule mine is...
De Colores: Mexico’s Mineral Palette
Story and Photos by Dr. Peter K.M. Megaw
Mexico has produced untold quantities of world-class specimens of well-crystallized colorful minerals from her many mines over...
De Colores: San Pedro Corralitos
Editor's Note: This is one of 10 Mexican locales recognized for mineral production. View the rest of the list as featured in an article...
Issue Highlights: October 2018
The October issue of Rock & Gem takes us to many fascinating places, both above and below ground.
• Argentina's Banded Rhodochrosite: Centuries of Precipitation and...
Rockhound Views: Dissecting Display Possibilities
Editor's Note: The Rockhound Review is a space where guest contributors can weigh in on topics stirring within the rock, gem and mineral community...
Earth Science in the News: Deadly Shark Teeth Surface
Editor's Note: Enjoy this new feature of Rock & Gem online containing news briefs of interest.
By Jim Brace-Thompson
Per The New York Times, a casual...
Rock Science: Lithium — The Battery Metal
By Steve Voynick
The lithium-bearing minerals most familiar to collectors are spodumene and trilithionite (formerly “lepidolite”). The kunzite variety of spodumene, or lithium aluminum silicate,...
