CLARKE.] 
IGNEOUS AND CRYSTALLINE ROCKS. 
153 
D. Shonkinite, Beaver Creek. SB. 3 of wyomingase. Contains 
anorthoclase, diopside, biotite, iron oxides, and apatite, with very little 
olivine and probably a trace of nephelite. P. R. C. 901. 
E. Leucitite, Bearpaw Mountains. Chotose. An olivine-f ree leucite- 
basalt. Contains leucite, augite, iron oxides, rarely biotite, and very 
little glassy base. P. R. C. 903. 
F. Tinguaite, dike on Bear Creek. Judithose. Contains orthoclase, 
nephelite, cancrinite, augite, regirite, apatite, a little sodalite, and a 
doubtful fibrous hornblende. P. R. C. 899. 
G. Pseudo-leucite-sodalite-tinguaite. Beaver Creek. Janeirose. 
Contains orthoclase, nephelite, sodalite, nosean, iegirite. diopside, and 
fluorite. P. R. C. 904. 
Si0 2 
A1 2 :! 
FeA 
FeO 
MgO 
CaO 
Na/> 
K 2 
H 2 at 110 c 
Ti0 2 
PA 
Cr 2 3 - 
NiO_. 
CoO.. 
MnO. 
CuO.. 
SrO . . 
BaO.. 
Li 2 . 
S0 3 . . 
co 2 .. 
CI.... 
F .... 
Less O 
i). 
50. 00 
9.87 
3.46 
5. 01 
11.92 
8. 31 
2.41 
5.02 
.17 
1.16 
.73 
.81 
. 11 
.07 
trace 
.07 
.32 
trace 
.02 
.31 
.08 
.16 
100. 01 
.08 
99. 93 
46. 51 
11.86 
7. 59 
4.39 
4.73 
7.41 
2.39 
S. 71 
1.10 
2.45 
. 83 
.80 
none 
.04 
trace 
.22 
trace 
.16 
.50 
trace 
.05 
none 
.04 
trace 
99. 78 
.02 
99. 76 
!■'. 
57.46 
15. 40 
4.87 
.87 
1.37 
2.59 
5. 48 
9.44 
.09 
.82 
.60 
.21 
G. 
trace 
.16 
.60 
trace 
.13 
.13 
.20 
trace 
100. 42 
.05 
100. 37 
51.93 
20.29 
3. 59 
1.20 
.22 
1.65 
8.49 
9. 81 
.10 
.99 
.20 
.06 
trace 
.07 
.09 
trace 
.67 
.25 
.70 
.27 
100. 58 
.27 
100. 31 
