TABLE III. 
305 
1 . 
2. 
3. 
4. 
5. 
6 
7. 
8. 
9. 
10. 
11. 
Si0 2 . 
47.28 
48.36 
48.95 
49.71 
50.06 
50.99 
51.46 
51.76 
51.82 
52.33 
52.37 
.788 
.806 
.812 
.829 
.834 
.849 
.857 
.862 
.863 
.872 
.873 
Ti0 2 . 
.88 
1.18 
.49 
1.57 
.51 
.67 
.83 
.47 
.71 
.71 
.73 
A1 2 0 3 . 
11.56 
12.42 
12.98 
13.30 
17.00 
15.62 
18:32 
12.36 
16.75 
18.70 
16.57 
.112 
.121 
.126 
.130 
.165 
.151 
,.177 
.120 
.164 
.181 
.160 
FeA . 
3.52 
5.25 
3.63 
4.41 
2.96 
8.47 
4.61 
4.88 
4.56 
4.95 
6.34 
.022 
.032 
.022 
.027 
.018 
.053 
.024 
.030 
.028 
.031 
.039 
FeO. 
5.71 
2.48 
4.68 
3.37 
5.42 
1.43 
2.71 
4.60 
3.36 
1.83 
2.35 
.034 
.065 
.046 
.075 
.019 
.037 
.063 
.046 
.025 
.032 
MiiO. 
.13 
.13 
.13 
.17 
.14 
tr . 
.17 
.11 
.23 
.03 
.07 
NiO 
.07 
.14 
.12 
BaO 
.29 
.46 
.26 
CaO. 
9.20 
8.65 
7.66 
8.03 
8.14 
6.53 
6.03 
7.14 
4.94 
4.71 
8.54 
.164 
.154 
.136 
.143 
.145 
.116 
.107 
.127 
.089 
.084 
.152 
MgO. 
13.17 
9.30 
11.73 
7.96 
3.-61 
5.23 
2.91 
9.57 ■ 
4.03 
2.69 
5.27 
.329 
.234 
.293 
.199 
.090 
.130 
.072 
.239 
.100 
.067 
.131 
Li O 
Na.,0. 
2.73 
1.46 
2.31 
1.49 
3.53 
3.39 
4.11 
1.99 
3.91 
4.51 
2.99 
.044 
.023 
.037 
.024 
.056 
.054 
.066 
.032 
.063 
.072 
.048 
K 2 0 ., . 
2.17 
3.97 
3.96 
4.81 
3.40 
3.05 
4.48 
3.83 
5.02 
5.45 
2.45 
.022 
.042 
.042 
.051 
.036 
.032 
,.047 
.040 
.053 
.057 
.026 
p 2 o 5 . 
.59 
.84 
.67 
.66 
.66 
.53 
.86 
.56 
.52 
.81 
.31 
so 
none 
CrA 
tr . 
tr . 
Cl.. . 
.18 
H 2 0. 
2.96 
5.54 
3.16 
4.07 
4.85 
3.87 
3.89 
3.05 
3.97 
3.45 
2.22 * 
100.08 
99.93 
100.35 
100.01 
100.28 
99.85 
100.38 
100.32 
100.08 
100.31 
100.33 
Less O for Cl.... 
.04 
100.04 
12 . 
52.49 
.875 
.81 
17.89 
.175 
5.76 
.036 
2.08 
.029 
.09 
.30 
7.01 
.125 
3.49 
.087 
3.18 
.051 
3.73 
.039 
.55 
2.63 
13. 
52.63 
.877 
.81 
16.87 
.165 
4.52 
.028 
3.11 
.043 
.10 
.29 
4.77 
.085 
3.69 
.092 
3.86 
.062 
5.17 
.055 
.63 
3.65 
100.10 
14 
52.93 
.882 
.72 
19.67 
.192 
3.07 
.019 
3.50 
.048 
.15 
.21 
4.69 
2.88 
.072 
4.20 
.067 
4.75 
.050 
.59 
2.73 
100.09 
15. 
53.49 
.891 
.J\L 
17.19 
4.73 
.029 
3.25 
.045 
.14 
.06 
6.34 
.113 
4.42 
.110 
3.23 
.052 
3.86 
.nil 
.43 
2.17 
16. 
54.86 
.914 
.69 
17.28 
.168 
4.08 
.025 
2.28 
.031 
.19 
.37 
5.42 
.096 
4.19 
.105 
3.94 
.063 
3?96 
.042 
.48 
2.16 
99.90 
17. 
18. 
19. 
20. 
56.05 
57.29 
60.89 
69.45 
.934 
.954 
1.014 
1.157 
.98 
.72 
.49 
.19 
19.70 
18.45 
17.14 
14.92 
.193 
.179 
.166 
.146 
3.74 
4.38 
3.32 
3.16 
.023 
.027 
.020 
.019 
2.32 
»1.20 
.95 
.23 
.032 
.016 
.013 
.003 
tr . 
tr . 
.09 
.07 
.12 
.19 
.03 
4.34 
3.57 
3.58 
1.19 
.077 
.063 
.063 
.021 
2.51 
2.08 
1.16 
.05 
.063 
.052 
.029 
.001 
.06 
3.29 
4.43 
4.54 
3.19 
.053 
.071 
.073 
.051 
4.44 
5.43 
5.71 
5.95 
.047 
.057 
.060 
.063 
.66 
.46 
.27 
.06 
.19 
1.86 
2.18 
1.61 
1.69 
100.14 
100.31 
99.94 
100.18 
100.01 
100.02 
