Keller, Peter C.,  1947-, <br/><br/>
Gemstones and their origins / 
Peter C. Keller ; featuring photographs by Harold and Erica Van Pelt ; foreword by Edward Gubelin 
 - xv, 144 páginas :  ilustraciones (algunas en col.) ; 
<br/><br/>Includes bibliographies and index 
<br/><br/><label>ISBN: </label>0442319452 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Piedras preciosas
<br/><br/><label>LC Class. No.: </label>QE392  / K45 
<br/><br/><label>Dewey Class. No.: </label>553.8