Cook, David C. <br/><br/>
Minerals and gemstones :  300 of the earth's natural treasures / 
Dr. David C. Cook & Dr. Wendy L. Kirk 
 - San Diego, CA  :  Thunder Bay Press ,  2007 
 - 320 p. :  col. ill. ;  17 cm. 
<br/><br/><label>ISBN: </label>9781592237357 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Precious stones<br/>Mines and mineral resources