C50 
MANGANESE DEPOSITS OF INDIA : DESCRIPTIVE. [PaUT IV : 
the occurrence and mode of origin of the ores is similar to that of the 
ores of the Jabalpur district, Central Provinces, as described by Mr. Bose 
in Rec. G. S. I., XXI, pp. 71-89 and XXII, pp. 216-22G. 
Specimens of these ores were brought to the Geological Survey Office 
by Mr. Gow. They were from Puseli, Shingargaon, and Virkhol, and 
consisted of psilomelane, often concretionary in s'hape, and usually mixed 
with a certain amount of pyrolusite. One piece (from Puseli) contained 
little patches of what may be manganite. In several of the specimens 
limonite was associated with the psilomelane. Two pieces, from Virkhol, 
showed respectively : — (1) a quartz- schist (or else a quartzite), now very 
friable, and largely replaced by psilomelane so as to form a sort of breccia ; 
and (2) a piece of quartzite banded with limonite, with both of these 
now largely replaced by psilomelane so as to produce the usual brecciate 
or network appearance. Another specimen was a beautiful piece of 
stalactitic limonite. Analysis shows that these ores, like those of Tale- 
vadi, are very variable as regards their manganese and iron contents, 
whUe the silica and phosphorus are uniformly low, ranging 0*25 to 2 "63% 
and 0-03 to 0-08 % , respectively. 
The result of the prospecting work was to show that although mangan- 
ese-ores are fairh' widely distributed in this area, yet they are not to be 
found in any quantity at any one spot. Where a good surface indication 
was found, the ores were found, when the outcrop was dug into, to pass 
into unaltered rock below. 
During 1907 very active prospecting has taken place in this district, 
and I believe a large number of claims have been taken up. But I have ' 
no information as to the quality and quantity of the ores found. 
Palanpur^State. 
Some specimens collected in this State by Babu Baidyanath Saha, 
include : — 
(1) Seme brownish jaspery quartzite with secondary psilomelane, 
from 2 miles north of Rohu station, Bombay, Baroda and Central India 
Railway, and 
(2) A rock composed of manganese-garnet (in trapezohedral crystals), 
tourmaline, orthoclase, and quartz, from Hoshanpur near Chitrasam 
station. 
