CLARKE.] 
IGNEOUS AND CRYSTALLINE ROCKS. 
63 
E. Epidote-chlorite-schist, i mile northeast of Montezuma, Mitchell 
County. Contains epidote and feldspar, with less chlorite, horn- 
blende, and magnetite. 
F. Metamorphosed amygdaloid, 3 miles southeast of Boone, Watauga 
County. Contains orthoclase and plagioclase, with less sericite, chlo- 
rite, and magnetite. 
G. Pyroxenite, var. websterite, from Webster. Websterose. De- 
scribed by Williams, Amer. Geologist, vol. 6, p. 35. Consists of 
diopside and bronzite. Analysis by E. A. Schneider, record No. 1096. 
Material dried at 105°. P. R. C. 388. 
H. Spherulitic rhyolite, Sam Christian gold mine, Montgomery 
County. Maskose. Described by Diller, Amer. Journ. Sci.,lth ser., 
vol. 7, p. 337. The rock of the supposed fossil, Paldeotrochis. Con- 
tains feldspar and quartz, with a little biotite and sericite. Analysis 
by Hillebrand, record No. 1796. 
E. 
F. 
G. 
H. 
Si0 2 
47. 85 
16. 51 
4.16 
7.43 
6.24 
7.00 
3.20 
.82 
.21 
4.00 
2.28 
.35 
.03 
.01 
.05 
.03 
.24 
trace? 
trace? 
trace 
43.62 
17. 30 
14. 13 
6.83 
2.34 
1.63 
3.45 
3.03 
.30 
2.93 
2.75 
1.34 
55. 14 
.66 
3.48 
4.73 
26.66 
8.39 
.30 
| .38 
trace 
1.23 
79.57 
Al-O, 
11.41 
Fe 2 3 
.20 
FeO 
.70 
MgO 
a little 
CaO 
.21 
Na 2 
3.46 
K 2 
3.52 
H,0 at 110° 
.18 
H 2 above 110° 
.61 
Ti0 2 
.11 
P 2 5 
trace 
Zr0 2 
Cr 2 3 
none 
.25 
V 2 3 
CoO,NiO 
none 
trace 
trace 
.09 
trace 
.11 
.03 
MnO 
SrO 
none 
BaO 

.05 
Li 2 
100. 41 
99.74 
100. 36 
100. 02 
