48 



Rogers — Mineralogical Notes. 



9. Celestlte Crystals from Sallna Co., Iiansas. 



The writer is indebted to Dr. J. W. Beede for some crystals 

 of celestite obtained at a quarry east of Mentor, Salina Co., 



nt. 



Kansas. As far as can be learned no celestite crystals have 

 been described from Kansas, though it is a common mineral at 

 several localities in the state. 



The crystals, one of which is represented by fig. 8, are of 

 the usual tabular habit elongated in the direction of the o-axis. 

 The following forms were identified : o (001), h (010), m (110), 

 n (120), I (104), d (102), o (011), / (113), and # (124). # (124), 

 a prominent form on the crystals, is mentioned by Hintze.* 

 m and n appear as narrow faces and did not give images. 

 They were identified by their zonal relations and by appropri- 

 ate measurements. The following are the results : 















Average. 



Calculated 



c 



A I 



001 



A 



104 



8 



22° 17' 



22° 20' 



I 



y\ d 



104 



S\ 



102 



8 



17° 31' 



17° 41' 

 52° f 



c 



A O 



001 



A 



011 



3 



52° 2' 



c 



a/ 



001 



A 



113 



3 



34° 50' 



34° 46i' 



c 



A^ 



001 



A 



124 



6 



37° 16' 



38° 26£' 



5 



a^ 



124 



A 



124 



4 



38° 111' 



38° 7' 



In conclusion the writer wishes to thank Prof. A. J. Moses 

 for suggestions in the preparation of this paper. 



* Hintze, Zeitschr. f. Kryst., vol. xi. 232, 1885. 



Mineralogical Laboratory, Columbia University, 

 New York, January, 1901. 



