814 MANGANESE DEPOSITS OF INDIA : DESCRIPTIVE. [ PaRT TV : 
These are equivalent to : — 
Number of sample. 
63 
68 
A.6 
A. 16 
Locality. 
Mansakra. 
Paharewa 
Mangeli. 
Gosalpur. 
Character of the ore. 
Pyrolusite 
with 
limonite. 
Pyrolusite. 
Pyrolusite 
with psilome- 
lane and limo- 
nite. 
Pyrolu- 
site. 
Manganese .... 
24-00 
24-65 
25-60 
56-80 
Iron ..... 
31-47 
26-64 
26-20 
1-60 
Silica (total) 
4.40 
17-30 
11-35 
1-85 
Phosphorus. 
0-22 
0-135 
0-286 
0155 
Sample No. 63 was taken along the Mansakra ridge. It consists of p3frolusite 
with a certain amount of chert like limonite, and some residual quartzite. Ana- 
jysed at the Imperial Institute. 
Sample No. 68 was taken from a gravel pit on the south side of the hill to the 
east side of the Mirzapur road, where there were exposed numerous bands of 
pyrolusite in a laminated sandstone-like rock, which was probably really a 
decomposed form of the Gosalpur quartzite. Some of the pieces in the sample 
showed siliceous bands. Analysed at the Imperial Institute. 
Sample A 6 was taken from two of the pits on south side of the small hill 
just to the west of Mangeli village. Besides pyrolusite the sample included a few 
pieces of psilomelane ; and some of the pieces of pyrolusite showed some limonite 
and hematite ; and a little siliceous remains. .Analysed by J, and H. S. Pattinson. 
Sample A. 16 was taken from one of the sides of one of the large irregular 
pits at Gosalpur. It consists of fine-looking pyrolusite, which occurred as a bed 
about 1 foot thick at a depth of 4 feet from the surface. The bed was apparently 
composed entirely of pyrolusite nodules from V' up to 6'' in diameter ; but did not 
continue far laterally, the pyrolusite giving way to psilomelane and limonite in one 
direction. It is overlain by 6'' to 1' of limoni'.e nodules and this by soil containing 
scattered fragments of limonite and quartzite. Analysed b\- J. and H. S. Pattinson. 
In some places at the surface the ridges of both the Sihora or 
„ -f ,. Gosalpur divisions of the Lora group (as 
Manganiferous limonito. ^ o \ 
mapped by Mr. Bose) are capped by masses 
of limonitic rock, which is usually somewhat manganiferous. I am 
inclined to think, however, that at Mansakra the rocks mapped as 
Gosalpur by Mr. Bose may be Sihora. If this be the case, these limonitic 
cappings are restricted to the Sihora beds. The limonite itself often 
shows a sort of slaty structure when resting on the outcrops of Sihora 
beds, as at Sakri and Kasai Hill, and it seems probable both from this 
