Sinkankas, John. <br/><br/>
Gemstones and minerals,  how and where to find them. 
Line drawings and diags. by the author. 
 - Princeton, N.J.,  Van Nostrand  [1961] 
 - 387 p.  illus.  24 cm. 
<br/><br/><label>LCCN: </label>61004196  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Gems.<br/>Pedras preciosas<br/>Precious stones.
<br/><br/><label>LC Class. No.: </label>QE392  / .S63 
<br/><br/><label>Dewey Class. No.: </label>549