SPECIMENS LOANED BY F. J. ESSIG AND F. w. BARTON. 



590 



Chlorastrolite, polished (Isle Royale). 

 Hematite, polished (England;. 



Thomsonite, polished (Lake Superior). 



UWFORD, CHICAGO. 



MINOR GEMS. 

 Cat's-eye, Quartz, polished rCeylon). 



Variscite. polished (Utah). 



Moldavite, cut (Bohemia). 

 Thomsonite, rough (Lake Superior;. 



