UNIVERSITY OF CALIFORNIA PUBLICATIONS 

 Bulletin of the Department of Geology 



Vol. 3, No. 13, pp. 265-275, Pis. 25=27. ANDREW C. LAWSON, Editor 



SPODUMENE 



FROM 



SAN DIEGO CO., CALIFORNIA 



BY 



Waldemar T. Schaller 

 CONTENTS 



PAGE 



Occurrence ,. 265 



Localities 265 



Mode of Occurrence 266 



Description of Crystals 267 



Forms 267 



Habit 269 



Etch Figures 269 



On the Unit Prism 269 



On the Clinopinacoid 272 



Physical Properties 273 



General Properties 273 



Optical Properties 273 



Chemical Composition 274 



OCCURRENCE. 



Localities. — Beautiful transparent spodumeue of deep am- 

 ethystine purple, rose and magenta colors, has so far been found 

 in two localities in southern California. The one from which 

 most specimens have been obtained is situated about two miles 

 north of Pala, San Diego Co., and this locality was visited 

 by the writer during the past summer. The other place of 

 occurrence is somewhere in the San Jacinto mountains, probably 

 not far from Cuahuilla, Riverside Co., which is about twenty- 

 five miles from Pala. It is probable that with further explora- 

 tion other localities will be found in the Smith mountains, San 

 Diego Co. and also in the San Jacinto mountains, Riverside Co. 



orr 21 1903 



Clonal 



