445 pages :colour illustrations ;20 cm
Includes bibliographical references and index.
"This is a superior reference for rockhounds, geology students and outdoors people with an interest in what's under their feet"--Provided by publisher.
1.Mineralogy--Encyclopedias.2.Minerals--Encyclopedias.3.Minerals--Identification.4.Petrology--Encyclopedias.5.Rocks--Encyclopedias.6.Rocks--Identification.Dynamic Details