1122 MANGANESK DEPOSITS OF INDIA: DESCRIPTIVE. [ Part tV I 
According to the one-inch map, deposit No. 1 is in tlie Holalkore taluk, 
and the remaiiuler in the Hosdurga taluk ; wliilst, according to the 
Atlas Sheets, Nos. 1 and 3 are in the Holalkere taluk and the remainder 
in the Hiriyur taluk. The nearest deposit to the railway is Sadarhalli, 
which is only i miles from Chik Jajur Station on the Southern Mahratta 
Railway. The other deposits all lie some 16 to 20 miles to the east 
of the railway as measured in a straight line. 
Mr. W. W. Coen of Hubli is working at Sadarhalli, and Haji Ismail 
Sait of Bangalore in the same area ; the Peninsular Minerals Company 
of Mysore, Limited, is at work in the Dod Kittadhalli area ; whilst 
Mr. C N. Surya Narayana Row of Bangalore has concessions in the 
Nirgudda and Iplara Hills. There are probably others working in various 
parts of the district, but concerning this I have no information. The 
Peninsular Minerals Company reported an output of 712 tons of 
manganese-ore in this district in 1906, but no ore was exported. 
During 1907 some 3,12-5 tons of ore were raised by various prospectors. 
As regards the quality of the ores I have little information ; they are 
probably similar to those of other parts of Mysore, namely compara- 
tively low in manganese and high in iron, low in silica, and fairly low in 
phosphorus, with a tendency for the silica to become high when the ore 
is not carefully cleaned. 
1. Sadarhalli. 
The manganese-ore deposit being worked by Mr. W. W. Coen lies 
about 1^ miles E.N.B. of Sadarhalli village on top of a hill rising to 200 
to 2-50 feet above the neighbouring low ground. It is a little over 
4 miles E. N. E. of Chik Jajur Station on the Southern Mahratta Railway. 
As shown on Mr. Sampat Iyengar's map it is just near the western edge 
of the Chitaldrug belt of schists. At the time of my visit a considerable 
anount of preliminary work had been done on the deposit. The 
numerous sections showed that the hill is covered with a thin skin of 
lateritic rock or lat^ritoid, in some places very like some varieties of 
true lateiite. In some places the thickness of this lateritoid is only 2 
or 3 '^eet, whilst in others it must be as much as 20 feet or even more. 
The rock underlying this is found to be a series of interbanded 
lithomarges, ochres, and wads, sometimes with associated psilomelane. 
In this series there are sometimes some bands of fine-grained quartzite 
of white colour, but irregularly impregnated with limonite so as to 
