484 



MEASUREMENTS OF CRYSTALS. 



aUARTZ. (Continned.) 



Fig. 182. 



P on/or z on/ 141°40' 



Fig. 183. 



P ono 160°15' 



ono 125 10 



TABULAR SPAR. Fig. 184. Page 370. 



Fig. 184. The primary, a right rhombic 

 prism ? 

 MonM' 95°2(y 



SERPENTINE. Figs. 185 to 189 inclusive. Page 

 272. 



Fig. 185. The primary, a right rectan- 

 gular prism. The remaining figures 

 are secondary forms, but the angles 

 have not been determined. 



CHONDRODITE. Fig. 190. Page 281. 



Fig. 190. The primary, a right oblique 

 prism, the greater angles being 112° 

 12'. 



TALC. Fig. 191. Page 284. 



Fig. 191. The primary, aright rhombic 

 prism. 

 M onM' 120° O' 



PYROXENE. Figs. 192 to 223 inclusive. Page 286. 



Fig. 192. The primary, an oblique rhom- 

 bic prism. 



M on M' 87° 5' 



M or M' on P 100°10' or 100 25 



Fig. 193, et seq. 



MorM'onr 133035' 



M'on I 136 15 



M ono 145 9 



MorM'ons 121 48 



P onr 106 15 



P ons 150 



P on t 147 48 



oono 95 28 



o onr 118 59 



o ons 156 39 



r onM 126 36 



s ons 120 38 



M on M 131 8 



