1146 MANGANESE DEPOSITS OF INDIA: DESCRIPTIVE. [ PaRT IV ; 
In the cavities or cells there may be either remains of quartzite or 
radiate tufts of pyrolusite. Mixed with the psilomelane there is also 
pyrolusite, and a fair quantity of the grey crystalline mineral and some 
wad, besides limonite and yellow ochre, some of these constituents 
appearing in one piece of ore and others in other pieces. It seemed to 
me that the most important portion of the ore lay not in the cap on 
top, but in the detrital deposits on the slopes ; and that from these a 
considerable quantity of ore might be won. 
15. Buddamatti Peak. 
This deposit is on a hillock situated a little to the east of the 
road to Chitaldrug at about 45 1 miles from Chitaldrug. There is here 
a lichen-covered lateritoid outcrop, which seems to be composed almost 
entirely of iron-ore — limonite, ochre, and hematite — and is probably 
10-15 feet thick. By the side of this lateritoid outcrop there is a 
large irregular excavation indicating doubtfully a strike of west by a 
little north. The rock exposed is yellow ochre mixed with psUomelane, 
and containing big patches of pyrolusite. There is also some whitish 
lithomargic rock. The deposit was examined when it was getting dark, 
and so I am not able to express an opinion as to the quantity of ore. 
16. Koshalli. 
This name is applied to three hills to the S. S. E. of the village of 
Hoshalli. Of these I visited one (No. 1) lying about 1^ miles from 
Hoshalli. I chose this one, because, although it was said to be the 
least valuable of the three, a large trench had been dug. The ore here 
crops out on the edge of a sort of shelf some 500 feet below the summit 
of the hill, and some 150 feet above the forest lane at the base. The 
outcrop has the usual lateritoid aspect, and, judging from the trench, 
is some 15 to 20 feet thick. The lateritoid is a mixture of limonite, 
hematite, manganese-ore (mainly psilomelane), and brown cherty quartz- 
ite, the latter often predominating. The rocks exposed below this in 
the trench, which runs in a southerly direction down the hill slope, are 
many feet of wad, ochres, and lithomarges, often thinly banded, and 
with a dip of 10 '-70° into the hill. They probably represent decom- 
posed slates or phyliites with some qiiartzose layers. This deposit is 
not regarded as having any value and has not been worked. 
