NSOME.] 
DEPOSITS OF RED MOUNTAIN REGION. 
237 
■e is said to have been bismuthiferoiis. The product for the three 
jars that have been recorded in the Mint reports is as follows, the 
Lver being quoted at coinage value and lead or copper not given : 
Product of Silver Bell mine. 
Year. 
Gold. 
Silver. 
Total. 
7 
82,400 
g77,600 
72. 404 
24.211 
$80,000 
f" 
72,404 
b 
1.512 
25, 723 
A specimen of the rich ore, obtained from a miner who had worked 
l the mine, proved on chemical examination to be an argentiferous 
ad sulphobismuthite. Kobellite, a sulphobismuthite of lead, in which 
Fig. 21.— Sections through the Silver Bell mine, showing ore bodies stoped. 
rt of the bismuth is replaced by antimony, has been described by 
1 F. Keller 1 from this mine, associated with chalcop} T rite and barite. 
] 3 gives four analyses, of which the mean is here quoted: 
Mean analysis of kobellite from Silver Bell mine. 
Constituent. 
Per cent. 
Constituent. 
Per cent. 
18.39 
28.40 
7. 55 
36.16 
3.31 
2. 59 
Fe 
1.50 
Zn -. 
.39 
1 
1 .. 
Gangue . 
.45 
98.74 
[ ... 
\ 
i Zeitschrift fur Kryt., Vol. XVII, 1890, pp. 67-72. 
