104 
M AXGANESE DEPOSITS OF INDIA: DESCRIPTIVE. [PaRT IV: 
and finer -grained, and contains small crystals of light emerald-green 
mica, probably fuchsite. 
Along the Government Forest lane dividing Jamrapani from the Gara- 
^ G<' < 1 'If ,t S^^^ forest there are outcrops of three ore-bands 
' " ' striking east by north. These three bands continue 
a little way into the Garaghat forest and if search were made might be 
found to crop out for some distance to the east. At a point about 1^ 
miles further east and about the same distance west of Piparia, a 
deposit of loose fragments of ore has been found and worked by Mr. D. 
Laxminarayan of Kamthi. 
The ores found in Ponia^ Thirori, and Jamrapani, consist partly of 
Nature and quality ^^^^^ S^^Y braunite-psilomelane mixture and 
of the ores. partly of what I have designated specHed ore (see 
page 696). There is also a certain amount of the coarsely crystalline 
braunite with subordinate psilomelane, like that of Lohdongii in the 
Nagpur district. Six samples were taken from various parts of the ore- 
belt ; the results of the analyses made at the Imperial Institute are 
shown in the following table : — 
Localities. 
Ponia. 
Thir.iri 
West 
Hill. 
Thiroji 
East 
Hill. 
Thirori 
Stacked 
ore. 
Thirori 
South 
Hill. 
Jam ra- 
])ani. 
Page reference 
701 
702 
702 
705 
703 
703 
No. of sample. 
50 
48 
52 
50-01 
27-97 
9-74 
4-90 
0-18 
0-28 
0-32 
49 
53 
Manganese peroxide . 
Manganese protoxide . 
Ferric oxule 
Silica (combined) 
Silica (free'. 
Pho.sphoric oxide 
Moisture at 100° C. 
52-88 
27-15 
12-(U 
4-30 
000 
0-18 
0-40 
58-72 
18-05 
9-99 
2-06 
0-44 
0-33 
0-70 
52-38 
24-67 
10-76 
2-74 
0-00 
0-25 
0-30 
51-49 
2302 
10-94 
3-77 
1-67 
0-24 
0-21 
55-82 
21-11 
12-57 
3-12 
0-00 
0-23 
0-38 
Manganese 
1 
54-51 
52-16 
62-06 
52-92 
50-42 
51-69 
Iron .... 
8-85 
6-99 
7-53 
6-82 
7-66 
8-80 
Silica .... 
4-30 
2-50 
2-74 
5-08 
5-44 
3-12 
Phosphorus 
0-08 
0-14 
Oil 
012 
0105 
0-10 
It will be seen from the above analyses that the characteristic features 
of these ores are the low percent, of combined silica and consequently 
of braunite, and the somewhat high per cent, of phosphorus, 
