Excerpt from The Mineralogy of Arizona It is well known to students of mineralogy that the greater num ber of interesting minerals are found at some depth below the surface in regions where the destructive effect of erosion and the decomposing action of meteoric water are not active and hence can be reached only by expensive exploitation rarely undertaken ex cept when compensation is hoped for in the possible discovery of the precious or useful metals. Arizona is attracting considerable attention on account of its unusual mineral resources, and its mountains and cafions are filled with excavations which are evi dences of the enthusiasm with which the search is carried on. Thus formations are penetrated and minerals exposed to view which, lacking this incentive, would never have been discovered. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

The complete guide for both novice rockhounds and experienced rock and mineral collectors with new and exciting collecting sites that exist and are easily accessible. Includes topographical maps, full-color photos, and site difficulty scales.

Rockhounding Arizona includes more than seventy of Arizona’s best rockhounding sites and their emblematic activities, from jasper hunting in the historic mining district near Bagdad to searching for gold in the Superstition Mountains and digging for turquoise at the foot of the Hieroglyphic Range. Rockhounding Arizona covers popular and commercial sites as well as little-known areas. It describes where to view mineral specimens and prehistoric artifacts at Grand Canyon and Petrified Forest national parks, as well as on tribal lands. Brimming with advice on collecting and preparing gems and minerals, this handy reference also includes maps, and directions to each site as well as to museums, rock shops, and major tracts of public land. For the beginner, it offers a complete introduction to this many-faceted hobby. For the expert, it is an outstanding guide and sourcebook.

Long awaited by professional geologists and amateur rockhounds alike, the new Mineralogy of Arizona is a completely revised and greatly expanded edition of a book first published in 1977 and updated in 1982.

Arizona Gold Placers and Placering was published by the Arizona Bureau of Mines in conjunction with University of Arizona as Bulletin 118 in 1922 and eventually became what it is today as bulletin 142 in 1937 fourth revised edition. This book covers all of the known Placers in Arizona by county. Additional information on the placers, their formation, History, Geology, production and locations are included. In addition, best types of recovery for these placers are discussed.