780 
MANGANESE DEPOSITS OF INDIA : DESCRIPTIVR. [pART IV . 
2. Lakhanwara.i 
(Indian Manganese Company.) 
W hen I saw this deposit in December J 903 it was visible at the surface 
as three very small outcrops of rather fine-grained hard grey crystalline 
ore, very largely braunite ; these are shown at the west end of the sketch- 
map, fig. 47 on page 782, from which it will be seen that they are only 
200 to 250 yards to the west of the Gaimukh deposit. In spite of the 
considerable difference between the ores of Lakhanwara and Gainmkh, 
it seems probable, in view of their proximity and situation roughly 
on the same line of strike, that there must have been some genetic con- 
nection between them. 
When I revisited these occurrences in December 1907, 1 found that they 
had been worked out. No. 1 extended to a depth of only 3 to 4 feet, 
the rf)ck below this being pegmatite and schists (?) largely converted 
into soil. A trench put across the strike near No. 3 showed only soft 
schistose micaceous gneisses with vein quartz, with a dip to the ?outh 
by west at 70°. The ore extracted was lying by the side of this 
trench and had evidently been found close to the surface only. From 
this it seems that we had here examples of the lowest parts of bodies of 
manganese -ore, the upper parts of which had been completely denuded 
away. 
I took a small sample from outcrop No. 3- It was analysed at 
Nature and qi:ality the Imperial Institute with the following result : — 
of the ores. 
Sample No. 11. 
Manganese peroxide . . . . . . . . . 40"86 
Manganese protoxide . . . . . . . . . 31'75 
P"'erric oxide . . . . • ■ • . • • . 16'82 
Combined silica . . . . . . . . . . 1"47 
Free silica . . . . . . . - . . . 3*39 
Phosphoric oxide . . . , . . . . . . 0"46 
Moisture at 100°C. . 0-39 
Carbon dioxide . . . . . . . . . 0-14 
This is equivalent to : — 
Manganese ........... 50*41 
Iron 11-77 
Silica (total) 4-86 
Phosphorus . . . . . ■ • . • . . 0"39 
1 Bee. G. S. I., XXXIII, page 211, (19C6). 
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