238 
ANALYSES OF ROCKS, U. S. GEOLOGICAL SURVEY. 
[bull. 168. 
This meteorite also contained a dark vein of sp. gr. 3.585, which 
carried 2.30 per cent of metallic iron. Analyses, made on less than 
0.4 gramme of material, gave as follows, recalculated to 100 per cent: 
E. Soluble in hydrochloric acid, metal deducted. 
F. Insoluble. 
i 
1 
E. 
F. 
Si0 2 - 
27. 63 
2.41 
34. 31 
3.27 
trace 
32. 12 
.52 
56. 52 
1.51 
12.35 
4.09 
trace 
25. 53 
A1 2 3 
FeO 
NiO+CoO 
CaO 
Ms*0 
S 
Less 0=S 
100. 26 
.26 
100. 00 
100. 00 
A represents 51 per cent and F 44 per cent of the vein. 
9. SAN BERNARDINO COUNTY, CALIFORNIA. 
Found in the San Emigdio Mountains. Anatyzed by J. E. Whit- 
field, record Nos. 804 and 936, and described in Bull. 60, p. 114. In 
fragments, badly altered. 
Approximate composition of the mass. 
Nickel-iron 6.21 
Soluble silicates, etc 51. 26 
Insoluble silicates 42. 23 
99.70 
The soluble part was probably olivine and pyrrhotite, with secondary 
iron oxide. The insoluble part was enstatite, essentially. 
A. The nickel-iron. 
B. The enstatite. 
A. 
B.. 
Fe 
88.25 
11.27 
.48 
Si0 2 
FeO 
CaO 
MgO 
54. 42 
14.03 
2.46 
29.11 
Ni 
Co ; 
100. 00 
100. 02 
