762 MANGANESE DEPOSITS OF INDIA : DESCHIPTIVE. [PaRT I"V 
village limits. The top of Dholi Hill consists of two peaks with a depres- 
sion between. The ore-band as it runs up the western end of the ridge to 
the western peak forms a very bold dyke-like outcrop, in one place 34 feet 
high. This is often split open in an extraordinary fashion by the roots of 
a species of fig-tree (the pdkar) which grows in abundance on it. It is 
here composed of interbanded grey qnartzite, yellow gondite, and massive 
yellow spessartite-rock, there being very little manganese- ore. On the 
slope down from the western peak to the depression between this and the 
eastern peak there is a certain quantity of good hard grey ore, as also on 
Nature and quality the ascent up to the eastern peak. Similar ore crops 
of the ores. 9,11 down the eastern descent from the eastern 
peak and down this slope I took sample No. 43 by chipjiing pieces off the 
outcrop at regular intervals. The pieces included in the sample consisted 
of the braunite-psilomelane mixture with a little spessartite in one piece. 
The analysis carried out at the Imperial Institute showed : — 
Sample No 43. 
Manganese peroxide .. .. .. .. 44"61 
Manganese protoxide .. .. .. .. 33'02 
Ferric oxide . . . . . . . . . . 7-73 
Silica (combined) .. .. .. .. 5*64 
Silica (free) .. .. .. .. .. 0-96 
Phosphoric oxide . . . . . . . . 0" 16 
Moi-sture at 100° C. .. .. .. .. 0-19 
This is equivalent to : — 
Manganese .. .. .. .. .. 53' 76 
Iron . . . . . . . . . . 5* 41 
Silica .. .. .. .. .. 6-50 
Phosphorus .. .. .. .. .. 0*07 
Moisture .. .. .. .. .. 0-19 
and indicates that the average ore contains about 5-5% of braunite and 
45% of psilomelane. Such ore is evidently well worth working, but it 
will require some actual quarrying to show whether the quantity avail, 
able is sufficient. 
; On the southern slopes of Dholi Hill there is a fair quantity of talus-ore, 
Talus-ore. but whether there be a sufficiently high per cent, of 
merchantable ore in this debris is doubtful. A few shallow excavations 
had been made on the nearly level ground at the south base of the hill. 
They showed a thickness of 1 to 2 feet of debris of ore and quartzite, most 
of the ore being valueless. A small proportion of good ore had been 
