CLAKKE.] 
IGNEOUS AND CRYSTALLINE ROCKS. 
25 
G Sodalite, deep blue. P. R. C. 77. 
H. Cancrinite, bright orange yellow. P. R. C. 77. 
I. Cancrinite, pale yellow, cleavable. 
J. Cancrinite, pale yellow, granular. 
G. 
H. 
I. 
J. 
Si0 2 
37.33 
31.87 
36.29 
30.12 
trace 
35. 83 
29.45 
trace 
37.22 
A1 2 3 
28.32 
Fe 2 3 
trace 
MgO 
.07 
CaO J 
4.27 
19. 56 
.18 
2.98 
trace 
6.96 
5.12 
19. 33 
.09 
3.79 
trace 
6.50 
4.40 
Na 2 
24.56 
.10 
1.07 
19.43 
K 2 
.18 
H 2 
3.86 
MnO 
trace 
co 2 
6.22 
CI 
6.83 
0— CI 
101.76 
1.54 
100. 36 
100. 11 
99.70 
100. 22 
