CLARKE.] 
CARBONATE ROCKS, 
333 
ARIZONA. 
A. Fresh contact-metamorphosed limestone, Joy mine, Morenci dis- 
trict. 
B. Primary alteration of A, adjoining- pyrite vein. 
Rocks A and B collected by W. Lindgren. Analyses by W. F. 
Hillebrand, record No. 1997. 
C. Representative "mineralized" limestone, Copper Queen mine, 
Bisbee. 
D. Dark limestone, Copper Queen mine. 
E. Alteration product of D. Partial analysis. 
Rocks C, D, E, collected by F. L. Ransome. Analyses by W. F. 
Hillebrand, record No. 2036. 
SiO, 
FeA 
FeO.. 
MgO . 
CaO . . 
Na 2 0. 
H 2 Oat 105°.... 
H 2 above 105° 
Ti0 2 ... 
Zr0 2 
C0 2 
PA 
so 3 
MnO 
CuO 
FeS 2 
CuFeS 2 
Li 2 
ZnO 
A. 
17.08 
2.34 
.76 
12.38 
32. 48 
.09 
.10 
.95 
3.01 
.27 
.02 
26.85 
.16 
• 13 
.26 
1.50 
.18 
trace 
.99 
99. 55 
B. 
42. 03 
3. 16 
1.18 
.84 
20. 25 
10.41 
.06 
.12 
1.07 
4.25 
.31 
trace 
3.58 
.42 
.75 
.18 
.83 
8.10 
1. 67 
trace 
.58 
C. 
7'.) 
28. 55 
.98 
none 
.84 
13. 62 
26.20 
.14 
.06 
1.05 
3.08 
.16 
19.00 
.54 
none 
.40 
trace 
5.63 
trace 
100. 25 
D. 
32.88 
clO.84 
1 
f 1. 45 
13. 93 
15. 78 
.26 
2.19 
a 7. 00 
undet. 
11. 75 
undet. 
3. 92 
100.00 
E. 
58.88 
C16.03 
5.13 
4.27 
.70 
.12 
10.29 
&4.S6 
undet. 
trace 
undet. 
99. 78 
By difference. 
*>Loss on ignition. 
c Includes possible Ti0 2 and P 2 5 . 
