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Parting Shot: Cobaltoan Calcite

Admin - January 29, 2019

Editor's Note: Every issue of Rock & Gem concludes the same way, with the Parting Shot. Page 82 boasts a beautiful rock, gem, mineral,...

Earth Science In the News: Much to Learn From Landslides, Asteroids

Admin - January 28, 2019

By Jim Brace-Thompson Mitigating Effects of Earthquake Generated Landslides A September 2018 magnitude 6.7 earthquake caused considerable damage by unleashing landslides across broad areas of Hokkaido,...

Rocks & Minerals Taking Center Stage in Movies?

Admin - January 25, 2019

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...

Columbia Basin Agates

Admin - January 24, 2019

By Jim Landon Every locality a rockhound finds or visits has a story to tell. They all hold secrets and offer up clues that can...

Rockhounding Road Trip: Field Report From Quartzsite

Admin - January 24, 2019

Editor's Note: This blog features insights about the rockhounding travels of Thomas Farley, as he gathers materials for a book about rockhounding in the...

Collectors’ Corner: Chance Encounter of the Thunder Egg Kind

Admin - January 23, 2019

By Antoinette Rahn Sometimes all it takes is one moment, one look, one opportunity, or a single object to change the trajectory of a life. Birgitta...

Rockin’ Rewind Wednesday: 300 Days of Volcanic Activity

Admin - January 23, 2019

By Antoinette Rahn Mauna Loa volcano is impressive on many levels. Not only does it occupy significant space geographically, but, its presence within the history...

Rock & Gem Kids: Geology 101 – Unconformity

Admin - January 22, 2019

By Jim Brace-Thompson Sediments build up in layers, giving us a geological record. An unconformity records a gap in that record. For instance, there may...

Rock & Gem Kids: Weird Words — Tafoni

Admin - January 21, 2019

By Jim Brace-Thompson Joshua Tree National Park in California’s Mojave Desert is a geological playground filled with odd granite formations. One consists of rounded nook-like...