Berechiah ben Natronai,  ha-Nakdan,  12th/13th cent. <br/><br/>
Sefer ko'aḥ ha-avanim  On the virtue of the stones : Hebrew text and English translation : with a lexicological analysis of the romance terminology and source study /  [electronic resource] = 
 On the virtue of the stones 
Berakhyah Ben Natronai ha-Nakdan ; edited, translated, and annotated by Gerrit Bos and Julia Zwink. 
 - Leiden ;  Boston :  Brill,  2010. 
 - x, 187 p. :  ill. 
 - Etudes sur le judaïsme médiéval,  t. 40  0169-815X ; .
 - Etudes sur le judaïsme médiéval ;  t. 40. .
<br/><br/>Includes bibliographical references and index. 
<br/><br/><br/>Electronic reproduction. <br/>Palo Alto, Calif. : <br/>ebrary, <br/>2013. <br/>Available via World Wide Web. <br/>Access may be limited to ebrary affiliated libraries. 
<br/><br/><br/>Text in English and Hebrew. 
<br/><br/><label>ISBN: </label>
<br/><br/><label>Subjects--Personal Names: </label><br/>Berechiah ben Natronai, ha-Nakdan,  12th/13th cent.  Sefer Ko'aḥ ha-avanim. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Gems--Folklore.<br/>Medicine, Medieval--Folklore.<br/>Magic.<br/>Lapidaries (Medieval literature)
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Electronic books.
<br/><br/><label>LC Class. No.: </label>GR805  / .B47 2010eb