516 
MEASUREMENTS OF CRYSTALS. 
IRON PYRITES. (Continued.) 
Figs. 461 and 462. 
P on d . 152°15'52" 
P on e . 153 26 5 
d on e . 140 46 7 
e one . 126 52 12 
e on e' or e" . 113 34 41 
MAGNETIC IRON PYRITES. Fig. 463. Page 
392. 
Fig. 363. The primary, a regular six- 
sided prism. 
WHITE IRON PYRITES. Figs. 464 to 466 in¬ 
clusive. Page 393. 
Fig. 464. The primary, a right rhombic 
prism. 
v M on M'.. 106° 2' 
Fig. 465. 
P on c. 160°48 / 
Fig. 466. A compound crystal made up 
of five individuals, 
a on c ..... 141°30'' 
ARSENICAL IRON PYRITES. Figs. 467 to 470 
inclusive. Page 394. 
Fig. 467. The primary, a right rhombic 
prism. 
M on M / . 111°18' 
Figs. 468, et seq. 
M or M' on a. 136°20 / 
M or M' on l . 115 32 
l on l ... 80 24 
l on z .. 160 49 
z on z .... 118 46 
SCORODITE. Fig. 471. Page 396. 
Fig. 471. The primary, a right rhombic 
prism. 
M on M / .. 120°10 / 
SPATHOSE IRON. Fig. 472. Page 397. 
Fig. 472. The primary, a rhombohedron. 
PonP' . 107° O' 
ANKERITE. Fig. 473. Page 398. 
Fig. 473. The primary, a rhombohedron. 
P on P' .. 106° 12' 
