CJ.AKKK.] 
IGNEOUS AND CRYSTALLINE ROCKS. 
81 
N. Adinole, see. 8, T. 43 N., R. 31 W., near Mansfield. Contains 
actinolite, albite, quartz, some chlorite, and epidote. Analysis by 
George Steiger, record No. l7oi>. 
(). Spilosite. Contains quartz, feldspar, chlorite, epidote. and a 
little biotite. 
P. Spilosite. Contains quartz, feldspar, actinolite. and epidote. 
Analyses () and P by II. N. Stokes, record No. 1617. These three 
rocks are contact derivatives of the Mansfield clay shite. <j. v. 
Si0 2 --.. 
A1 2 3 
Fe 2 3 
FeO 
MgO 
CaO 
Na 2 
K 2 
H 2 0at 110°... 
H 2 above 110 c 
Ti(), 
PA 
MnO 
SrO 
BaO 
VA 
Li 2 
CO.. 
c 
F 
x. 
74. L6 
11.85 
.si' 
L.66 
2. 10 
L\ 10 
6. 57 
. 15 
.05 
. 52 
.37 
.08 
.06 
none 
none 
.09 
.18 
100. 76 
52.51 
19.00 
:;. :;i 
7.19 
3.29 
1 . 55 
6. 72 
.70 
.34 
:;. 26 
1.70 
.15 
trace 
trace 
trace 
trace 
none 
trace 
00. 72 
57.77 
19.33 
1.29 
3. 37 
4.35 
1.71 
8.22 
.22 
.18 
•1. 34 
.02 
.04 
trace 
trace 
none 
.02 
none 
none 
none 
99. 76 
Bull. 228—04- 
