STUDII SULL’ IDOCRASIA DEL MONTE SOMMA 
289 
Quadro N. 14. 
Cristallo N. 16 , tìg. 44. 
Individuo I. 
Angoli delle normali alle facce 
Differenza 
dagli angoli 
calcolati 
Individuo II. 
Angoli delle normali alle facce 
Differenza 
dagli angoli 
calcolati 
Zona [001, 110] 
(111) £(101) 25 U 18 / 00' / 
0 / 
0 00 
(III) (001)c 36°58 / 00" 
- 0°14 
(101) (IH) 26 15 00 
-+- 0 57 
(001)o (111) 37 01 30 
— 0 11 
(111) (110) 3 52 40 30 
— 0 08 
(110)e (331)! 23 48 30 
-i- 0 05 
(331) (221), 09 40 30 
— 0 01 
(221), (22l) tì 00 10 00 
(22l) u (lll)c 19 20 00 
— 0 05 
(111) (00l)o 36 59 30 
— 0 12 
(00l)c (IH), 36 39 30 
- 0 32 
(III), (III) 2 00 37 00 
Zona [001, HO] 
(HO) (001)c 37 02 00 
— 0 10 
(001)o (IH) 37 08 30 
— 0 04 
(IH) (HO) 52 47 00 
— 0 01 
(HO) (III) 53 06 30 
+ 0 18 
(HI) (00l)o 37 10 30 
— 0 02 
(00l)c (III) 36 05 00 
— 1 07 
(III) (III) 51 24 30 
— f— 0 48 
(HI) (III) 50 19 30 
— 0 18 
(111) (111) 50 28 30 
- 0 09 
