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Metal Splashes
By Jim Brace-Thompson
I first encountered a “splash” in a Michigan rock shop. Michigan is historically famous for its copper deposits, and the shop had...
The Golden History of Breckenridge
Story and Photos by Steve Voynick
One of the world’s foremost collections of leaf and wire gold is displayed at the Denver Museum of...
Etched to Perfection
Story and Photos by Jim Landon
The first time I heard of Will Johnson was when my wife, Kerry, returned from a visit to the...
Exploring Unakite
By Jim Brace-Thompson
Unakite is metamorphosed granite that has been altered by undergoing what is called “epidotization”; therefore, it is sometimes called “epidotized granite”. Granite...
What to Cut: Camo Picasso Marble
By Russ Kaniuth
Each year many old materials are depleted and become rare or hard to find, but at the same time, there are new...
Issue Highlights: August 2019
Below is a snapshot of some of the topics and interests you can expect to see in the pages of the August 2019 issue...
Earth Science In the News: A Stratovolcano and Sloth Fossils
By Jim Brace-Thompson
Mount Sinabung Spells Continuing Trouble for Indonesia
Indonesia is home to about 130 of the world’s most active volcanoes, and one of those...
Evolution of A Lapidary: D. Robert Smith
Editor's Note: The 'Evolution of A..." profile is a new column featuring people with various rock, gem, mineral, fossil, and lapidary related careers. The stories...
Out And About In the Pioneer Mountains Region
By Jim Landon
The Pioneer Mountains of southwest Montana form an imposing chain of north/south trending granite peaks that are bound on the east by...
Getting the Scoop on Brucite
By Jim Brace-Thompson
Brucite (magnesium hydroxide) is an important economic mineral. In my home state of California, many a mining town has named a street...
