— 194 — 
.CAPO 
XXII. 
SOSTANZA 
P(C, Hx)3 S 
P (C,.Hz)3 Sa 
NP ((Cx Hy)s (05 Hr) (C8)] 
NP |(C.Hx)s (Cs Hs) (CS)7] 
P [(C, H;)3 (CH, Br)} Br 
As{[(C,.H;); (C, H;) Br)] Br 
P (C, Hz) I 
P[(C, H;)z Pi) Cl 
P [(CH3); (CH, B r))Br 
Pa [(C H3)6 (C, H,)"] Br» 
P» [(Cx Hs)c (C° H,)"] IL 
P (C, H;), C14P4CL 
P [(C, H5)3 (CH3)] C1, P®C1, 
P ((C,Hy)3 (C, Hy 0)]) C1, PtCh 
ip. [(C, H;)s (0, H, Br)] (021 Q Pt Ch 
Ps [(C, Hz); (0, H;)/] CL, (P40L): 
PAS {(Ca Hs)s (0, H,)] C L , (Pt (0; IN 
NP [H, (C. H;); (C.H,)/] Cl, (PtC1) 
NP (H; (C, Hz): (C. H,)"] Cl, (PtCh): 
P3 [(C Hy)o (CH)) Ch, (Pt Ch); 
P(C,H;)} 0, Znl 
[P (C. Hz): 0]; [P (C, Hy); Cla], (Pt 01): 
RIASSUNTO delle forme dei 
QUAD 
SISTEMA 
Romboedrico 
Monoclino 
Id. 
Id. 
Monometrico 
Id. 
Romboedrico 
Monoclino 
Trimetrico 
Monoclino 
Trimetrico 
Monometrico 
Id. 
Td. 
Monoclino 
Td. 
Triclino 
Monoclino 
Trimetrico 
Monoclino 
Td. 
Id. 
FORME E SFALDATURE 
OSSERVATE 
100, 010, 001, 110, 101 
(ARTO 
ssoriiti in questa Memoria (vedi pag. 188). 
— 195 — 
ANGOLI CARATTERISTICI 
{ll 100 = 94% 
101, 101 = 27°. 
100, 010, 001, 110 100, 001 = 610 
100, 001, 110, 101,201, i19@f100, 101 = 395°. 
100, 001, 110, 101, 201,Î1 iL 101 = 29°. 
110 
110 
111, 101, 100, 110, 210,3110fj11, 100 = 59°. 
001, 110, 101, 112 100, 101 == 26°. 
== (01,101 = 31°. 
LODO LO, 201 MINO 608 
001, 110, 101 100,101 = 17°. 
= “i DI, 101 = 20°. 
110, 101 ito, 110 = 60°. 
100, 111 
100, 111 
111 
100, 010, 110, 101, 101, 0tlfffm, 101 — 55°. 
Te [Mo le=S530) 
LORD LOSE ,001= 82°. 
97 1R0o sto = 81°. 
100, 010, 001, 011, 021,1 ,001= 89°. 
i0, TILT — 640. 
1 1, 110,011 ,101= 43°. 
So, 1,101 = 43°. 
100, 010, 110, 101 0,110 = 59°, 
100, 010, 001, 101, 111 0, 101 = 46°. 
ii 1,101 = 48°, 
11, 1110/00, 101 — 34°, 
s00pOROAco le 1, 101 — 48°, 
100, 001, 110, 101, 111, 1128/00, 101 — 27°. 
1, 101 = 46°. 
Segno 
CARATTERI OTTICI APPROSSIMATIVI 
Piano assiale 
Mediana 
Indici e Angolo assiale 
357. 
4143010, 111= 740,4: 
74. 
2°; 010, 110= 440,27". 
42; 010, 111= 390,22; 
go, 
32". 
48; 010, 111 = 59°.38'; 
28'. 
24: 001,101=22°.9. 
453 010, 111 = 570.47; 
4. 
18; 001, 101=450.9'. 
59; 010, 111= 60°.37; 
36. 
52; 100,001 =88°. 14; 
9; 100,111 =120°.18'; 
AI 
35; 010,111 =55°.36'; 
ne 
50; 001, 101=70°.38'. 
2; 010, 111=48°.27; 
28. 
25; 010, 111=50°. 16%; 
48'; 
19; 010, 111=41° 4; 
23'. 
— 
0 
| 
+ 
\- 
| 
\- 
+ 
001 
+ (010 
010 
ns) 
4 [010] 
# (010) 
4 [010] 
001 
IL [001] 
[010] 
IL [010] 
IL 101 
LL [010] 
IL [010] 
IL [010] 
[100] 
(010) 
o=1,59; e=1,65 
u=1,75;2V = 70° 
B=1,657;2V= 720.30" 
= 1, 660; e = 1,668 
[001] > [100] > [010] 
2E=60° 
y=1,58;2V= 78° 
