Rocks and minerals  [electronic resource]. 

 -  Heldref Publications [etc.] 
 - Bimonthly,  1978- 
 - v. 1- (no. [1]- ); Sept. 1926- 
<br/><br/> Latest issue consulted: Vol. 84, no. 6 (Nov./Dec. 2009).  Editor: Sept. 1926- P. Zodac.  Periodical 
<br/><br/>"Opal bibliography, by G. Frederick Shepherd.": v. 8, p 51-60. 
<br/><br/>
<br/><br/>Official journal of the Rocks and Minerals Association. 
<br/><br/> Vols. 1-3, 1926-28, in v. 4, no. 1. 
<br/><br/><label>ISSN: </label>0035-7529 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mineralogy--Periodicals.<br/>Min�eralogie--P�eriodiques.
<br/><br/><label>LC Class. No.: </label>QE351  / .R6