Discovery Channel (Firm) <br/><br/>
Rocks and minerals :  an explore your world handbook / 
Discovery Channel (Firm) 
 - New York :  Discovery Books,  c1999. 
 - 192 pages : colored illustrations 
<br/><br/> Includes glossary and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology<br/>Rocks<br/>Minerals