Product Description Amazon.com
Perfect for mountain climbers and hikers, this valuable reference covers
more rocks and minerals in North America than any other available guide. 794
full-color photographs depict all the important rocks, gems, and minerals -- in
many variations of color and crystal form -- and the natural environments in
which they occur; written descriptions provide information on field marks,
similar rocks and minerals, environment, areas of occurrence, and derivation of
names. Includes a guide to mineral collecting and a list of rock-forming
minerals
