Thomas, Arthur <br/><br/>
Gemstones :   properties, identification and use / 
Arthur Thomas. 
 - London :  New Holland Pub,  2008. 
 - 256 pages:   color illustrations  23 cm. 
<br/><br/> Includes appendices and bibliography 
<br/><br/><br/>English 
<br/><br/><label>ISBN: </label>9781845376024 
<br/><br/><label>LC Class. No.: </label>553.8 T36g c2008