Published in 2022, this 240-page book, with over 700 illustrations 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. The book measures 10 1/4″ x 8 1/2″.

Author: Hans Gamma
Introduction by Barry Friedman

© Hans Gamma, 2022

Published in 2019, this book features 140 pages with over 320 images. It is the first to showcase the remarkable variety of 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. The book measures 10 1/4″ x 8 1/2″.

Author: Hans Gamma
Introduction by Barry Friedman

© Hans Gamma, 2019

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
Introduction by Johann Zenz

© Hans Gamma, 2015

$ 35.00
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Order all three books in one shipment at a discount price.

$105.00
plus $ 15.00 Shipping and handling