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MANGANESE DEPOSITS OP INDIA : DESCRIPTIVE. [PaRT TV 
blackened shale. The analysis was made at the Imperial Institute with 
the following result : — 
Sample No. 66. 
MnO. 30-92 
MnO 3-33 
FcjO., 27-39 
SiOo (combined) 3-79 
SiO„ (free) 19-61 
P.O. 0-14 
Moisture at 100" C 0 34 
This is equivalent to : — 
Manganese ........ 22-14 
Iron 1917 
Silica (total) 23 40 
Phosphorus ........ 0-06 
The manganized shale and psilomelane together are hence of no 
value. The psilomelane alone might give a fairly good analysis, but 
without the manganized shale would not be abundant enough to be 
worth working. 
17. Khatola. 
See Bose, pages 75 and 83. 
Mallet, aho, refers to the occurrence of manganiferous hematite at 
this locality, i 
The only point of particular interest at this locality is the occur- 
rence, on the hill immediately to the west of the gap where the 
railway cuts through the ridge, of psilomelane containing small crystals 
of magnetite, the presence of which shows that the original rock con- 
tained magnetite as one of its constituents, the magnetite alone having 
escaped replacement. In this respect this ore resembles some of the 
psilomelane of the Sandur Hills, which often contains similar residual 
crystals of magnetite. 
The small hills on either side of Sihora Railway station are the 
most easily accessible of any in this area, to the geologist who wishes to 
examine typical banded hematite-jaspers. 
18. Paharewa. 
See Bose, pages 75, 83, 224. 
1 Jtec. G. S. I., XVI, p. 102. (1883). 
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