Lyman, Kennie, <br/><br/>
Simon & Schuster's Guide to Gems and Precious Stones : 

 -  Touchstone,  1986. 
 - 388 pages 
<br/><br/><label>ISBN: </label>9780671604301 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Nature.
<br/><br/><label>Dewey Class. No.: </label>553.8  / LYM