IGNEOUS AND CRYSTALLINE ROCKS. 147 
trace; trace 
06 
trace | none 
100. 08 | 99.85 | 100.12 | 100. 01 | 100. 46 
F. Meta-andesite tuff. Described in 14th Ann., p. 441. Contains plagioclase, 
augite, epidote, chlorite, and secondary hornblende. P. R. (. 719. 
G. Uralite diorite, 1 mile southeast of Forbestown. Ornose. Described in 17th 
Ann., pt. 1, p. 521. Contains plagioclase, hornblende, and magnetite. P.R.(.751. 
H. Basalt, Oroville, Table Mountain. Camptonose. Described in 14th Ann., 
p. 441. Contains plagioclase, olivine, augite, and magnetite. P.R. (. 718. 
I. Altered peridotite, 5 miles northeast of Strawberry Valley. Largely serpentine, 
with olivine, hornblende, magnetite, and calcite or dolomite. P.R. C. 742. 
100. 02 | 100. 38 | 99.81 | 100.18 
a Includes possible TiO. 
5. SIERRA COUNTY. 
Rocks collected and described by H. W. Turner. See paper in 17th Ann., pt. 1, p. 
521. Additional details supplied by Turner are given here. Analyses A to II by 
W. F. Hillebrand, record Nos. 1456 and 1548. Analysis I by H. N. Stokes, record No. 
1514. 
