Every stone has a story. 

 - Washington:  National Geographic,  1995. 
 - 1 video:  20 min. 
<br/><br/> Examines rocks both in nature and in a laboratory, and joins scientists and students as they conduct experiments to determine the content and structure of rocks and minerals. 
<br/><br/><label>ISBN: </label>0792229258 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Rocks.<br/>Minerals.
<br/><br/><label>Dewey Class. No.: </label>548