Web design: Corina Gamma


Hans Gamma Portrait

For over fifty years, I've been following my passion for jaspers and agates, and to document each precise locality.

Originally from Switzerland, I retired in the beautiful Arizona Desert, where I collect, cut and polish rocks with great enthusiasm, to unveil more of the secrets of the World of Jaspers.

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Books authored by Hans Gamma    
Jasper and Agates book  

ROCK TREASURES OF OREGON: Agate, Jasper, Obsidian, Petrified Wood

Just newly published in 2022, this 240-page book is one of the most comprehensive compendiums of Agate, Jasper, Obsidian and Petrified Wood found in Oregon. With over 700 photographs, this book gives full insight into the different varieties and locations.

PLEASE NOTE: Allow up to two weeks for delivery.

Author: Hans Gamma
Introduction by Barry Friedman

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JASPERS & AGATES from the California Coast Ranges

Published in 2019, this book features 140 pages with over 320 images, showcasing the remarkable jaspers and agates found in the Coast Ranges of California. Morgan Hill and Hornitos jaspers have been thoroughly researched, and many other unique variations are described and beautifully pictured in this volume.

Author: Hans Gamma
Introduction by Barry Friedman

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Jasper Book Cover    

PICTURE JASPERS from the Northwest

Published in 2015, this book features 184 pages with over 500 images and information about the Jaspers from the McDermitt area, Blue Mountain and the Owyhee region in Oregon, as well as Bruneau Canyon and Willow Creek in Idaho. 32 pages are dedicated to the popular and much sought after Morrisonite.

Author: Hans Gamma
Co-writer: Lauritz A. Jensen

To purchase this book, please Contact us