CLARKE.] 
IGNEOUS AND CRYSTALLINE ROCKS. 
53 
E. Epidote-chlorite-schist, J mile northeast of Montezuma, Mitchell 
County. Contains epidote and feldspar, with less chlorite, hornblende, 
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. Described oy Wil- 
liams, Amer. Geologist, vol. 6, p. 35. Consists of diopside and bronz- 
ite. 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. Described by Diller, Amer. Journ. Sci., 4th ser., vol. 7, p. 
337. The rock of the supposed fossil, paleeotrochis. Contains feld- 
spar and quartz, with a little biotite and sericite. Analysis by Hille- 
brand, record No. 1796. 
Si0 2 
ALA 
Fe 2 3 
FeO 
MgO 
CaO 
Na 2 
K 2 
H 2 Oatll0°... 
H 2 above 110 
Ti0 2 
PA 
Zr0 2 
Cr 2 3 
VA 
CoO,NiO 
MnO 
SrO 
BaO 
Li 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 
100. 41 
F. 
43.62 
17.30 
14.13 
6.83 
2.34 
1.63 
3.45 
3.03 
.30 
2.93 
2.75 
1.34 
none 
none 
trace 
trace 
.09 
trace 
99.74 
55. 14 
.66 
3.48 
4.73 
26.66 
8.39 
.30 
.38 
trace 
.23 
25 
11 
03 
100. 36 
H. 
79.57 
11.41 
.20 
.70 
a little 
.21 
3.46 
3. 52 
.18 
.61 
.11 
trace 
none 
.05 
100.02 
