520 
MEASUREMENTS OF CRYSTALS 
GALENA. (Continued.) 
Pone . I25°15 / 52" 
c one . 109 28 16 
Fig. 493. A compound crystal. Orange 
county. 
WHITE LEAD ORE. Fig. 496. Page 414. 
Fig. 496. The primary, a right rhombic 
prism. 
MonM' . 117° O' 
ANGLESITE. Fig. 497. Page 415. 
Fig. 497. The primary, a right rhombic 
prism. 
MonM 7 . 103°42' 
YELLOW LEAD ORE. Fig. 498. Page 416. 
Fig. 498. The primary, an octahedron 
with a square base. 
P on P' . 131 0 15' 
P on P . 99 50 
PYROMORPHITE. Fig. 499. Page 417. 
Fig. 499. A secondary form. 
M on M'. 120° O' 
M on P .. 90 0 
PYROMORPHITE. 
M on c' or M' on c" .. 131 45 
M or M' on d' .. 150 0 
P on c or c' . 138 30 
c' on c or c". 110 5 
VAUQ.UELINITE. Fig. 500. Page 418. 
Fig. 500. A compound crystal. 
P on P'over the summit, 134°30 / 
Pon/i. 149 0 
NATIVE BISMUTH. Fig. 501. Page 419. 
Fig. 501. The primary, a regular octa¬ 
hedron. 
NATIVE COPPER. Fig. 502. Page 420. 
Fig. 502. The primary, a cube. 
RED COPPER ORE. Fig. 503. Page 421. 
Fig. 503. The primary, a regular octa¬ 
hedron. 
VITREOUS COPPER. Fig. 504. Page 422. 
Fig. 504. The primary, a right rhombic 
prism. 
M on M' 
119°35' 
