774 
MANGANESE DEPOSITS OF INDIA : DESCRIPTIVE. [ParT IV ' 
character of the hill, cn which no work had been done. Fifty to 100 
feet, however, seemed to he a probable true figure for the thickness of the 
deposit. In 1907 there was a trench across the top of the ridge. This 
indicated a horizontal width of 115 feet, corresponding, with a dip of 
45° to the south side, to 80 feet of true thickness ; but even this section 
was not conclusive and the above figure may be slightly too large or 
too small. A length of about 40 yards of the east end of the deposit 
seemed quite worthless at the outcrop, the ore being m.ixed with gondite 
and magnetite-spessartite-rock, both chalcedonized. By December 
1907 a trench had been cut across the ridge at this point. Two ore-bands 
were exposed. One of these, probably corresponding to the main mass 
of the ore in the hill further west, was 7 paces wide, with a dip of 35°-40° 
to the south by east. The other band was a subsidiary one, some 1!) 
paces north of the one noticed above. The ' country ' exposed in this 
trench consisted of biotite-gneiss, gondite, and a decomposed rock that 
might be a spessartite-gneiss. This series, including the main ore- 
band, is traversed by coarse felspathic intrusives. Except for this 
trench the ' country ' of the depo sit was obscured by the debris of 
the ore. 
Hillock No. 2 is 140 paces long, and perhaps 15 to 20 feet high. At 
^ ^ the eastern end it is composed largely of chalce- 
donized quartz-microcline-spessartite-rock ; but the 
remainder of the hillock, as far as could be judged from the outcrops, 
seemed to be composed of ore. In December 1907 the north edge of this 
liillock had been a little opened up. The ore exposed probably corres- 
ponds to the subsidiary band in hill No. 1. The section showed abun- 
dance of a light brown rock (probably pyroxene-felspar-rock), sometimes 
apparently interbedded with the manganese-ore layers, and sometimes 
clearly cutting across them. The thiclmess of the ore in this hill cannot 
be stated until it is better opened up. 
Hillock No. 3 is about 130 paces long, and 35 broad, with a height 
^ of perhaps 15 to 20 feet. The whole hillock seems 
to be composed of ore mostly of rather good quality, 
but containing in places a fair amount of pink felspar as impurity, 
together with some spessartiferous bands. 
The next hillock, No. 4, is 1 40 yards long and 60 broad, with a height 
of 15 to 20 feet. Here clearings, which had been 
made along and across the deposit, showed that ore 
cropped out in situ only for 66 paces from the eastern end, fragments, 
