205 
16. 
17. 
18. 
19. 
20. 
Si0 2 .. 
9 
54.86 
56.05 
57.29 
60.89 
69.45 
)i 
.914 
.934 
.954 
1.014 
1.157 . 
Ti0 2 .. 
1 
.69 
.98 
.72 
.49 
.19 
A1A- 
9 
17.28 
19.70 
18.45 
17.14 
14.92 
38 
.168 
.193 
.179 
.166 
.146 
Fe 2 0 3 . 
3 
4.08 
3.74 
4.38 
3.32 
3.16 
29 
.025 
.023 
.027 
.020 
.019 
FeO.. 
5 
2.28 
2.32 
«1.20 
.95 
.23 
45 
.031 
.032 
.016 
.013 
.003 
M 11 O . 
4 
.19 
tr. 
tr. 
.09 
.07 
MO .. 
.12 
.19 
BaO.. 
16 
.37 
.03 
CaO.. 
54 
5.42 
4.34 
3.57 
3.58 
1.19 
13 
.096 
.077 
.063 
.063 
.021 
MgO. 
[2 
4.19 
2.51 
2.08 
1.16 
.05 
10 
.105 
.063 
.052 
.029 
.001 
Li 2 0 . 
.06 
Na 2 0 . 
IS 
3.94 
3.29 
4.43 
4.54 
3.19 
152 
.063 
.053 
.071 
.073 
.051 
K 2 0.. 
16 
3?96 
4.44 
5.43 
5.71 
5.95 
141 
.042 
.047 
.057 
.060 
.063 
PA-'. 
13 
.48 
.66 
.46 
.27 
.06 
so 3 
.19 
Cr 2 0 3 . 
Cl.... 
h 2 o.. 
L7 
2.16 
1.86 
2.18 
1.61 
1.69 
)2 
99.90 
100.14 
100.31 
99.94 
100.18 
Lc 
