CLARKE.] 
IGNEOUS AND CRYSTALLINE ROCKS. 
89 
D. Red soda granite. Liparose. Contains feldspar, quartz, chlorite, 
some muscovite, rutile, leucoxene, hematite, and apatite, with some- 
times secondary calcite. Granular variety. Analysis by W. F. Hille- 
brand, record No. 495. Dried at 110°. 
E. Same as D, porphyritic variety. Toscanose. Called by Bavley 
a quartz-keratophyre. Analysis by Hillebrand, record No. 497. 
F. Similar red porphyry, Little Brick Island, Lake Superior, near 
Pigeon Point. Liparose. Consists chiefly of feldspar and quartz, 
with augite occasionally present. Analysis by L. G. Eakins, record 
No. 1059. 
G. Red feldspar, anorthoclase, separated from D. Contains hema- 
tite inclusions. Analysis by J. E. Whitfield, record No. 521. Dried 
at 104°. 
Si0 2 . 
AlA 
Fe 2 3 
FeO. 
MgO 
CaO. 
Na 2 
K 2 0. 
H 2 0. 
Ti0 2 
PA 
MnO 
SrO. 
BaO 
Li 2 
CI... 
i>. 
72.42 
13.04 
.68 
2.49 
.58 
.66 
3.44 
4.97 
1.21 
.40 
.20 
.09 
trace? 
.15 
trace? 
trace 
100. 33 
74.00 
12.04 
.78 
2.61 
.42 
.85 
3.47 
4. 33 
.86 
.34 
.06 
.05 
trace 
.12 
trace? 
trace 
99.93 
73.70 
12.87 
3.76 
.31 
.11 
.14 
3.63 
4.56 
.57 
.12 
trace 
.07 
99.84 
65. 00 
18.22 
2.64 
-.06 
1.06 
8.40 
4.18 
46 
100. 02 
