21 



281. ILMENITE. (With Lithomarge) Smitlifield, Rhode Island. 



*iu /N 



282. 



Egersund, Norway. 



283. ISEKINE. 



?r 



284. SPINEL. 



>J^ B 

 .-^C HB 



285. BLACK SPINEL. 



286. 



287. 



n 



288. 



Isemviese, Riesengebirge, 

 H 5 S Germany. 



Tyrol. 



5PI 



Orange Co., N. Y. 



* * 



Mbnzonij Tyrol. 

 ft *J 



Warwick, N. Y. 



289. BLUE SPINEL. 



Sweden. 



290. MAGNETITE. 



5ft IS 



291. 



292. 

 293. 

 294. 



Magnet Cove, Arkansas. 



* * 



Magnet Cove, 



Orange Co., N. Y. 

 ft * 



Cumberland. 

 * T *'J 



Saxony. 



