Gemstones :  precious stones, semi-precious stones, natural crystal formations... :  a handbook for amateur gemologists / 
Rupert Hochleitner 
 - New York :  Barron's Educational Series,  1990 
 - 63 p. :  ill. ;  15 cm. 
<br/><br/> Translated from German by Elizabeth D. Crawford and formerly published by Graefe and Unzer, Munich 
<br/><br/><label>ISBN: </label>0812044541 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Precious stones