690 
MANGANESE DEPOSI'IS OF INDIA : DESCRIPTIVE. [PaRT IV: 
f 0. Balaghat (Bhaiweli, Hira- 
I pur, and Manegaon) . C. P. P. S. 
I 9a. Laiigur . . . Indian Manganese Co. 
I 10. Ghondi . . . J)utt, Burn & Co. 
I II. Gudnia, Ukua, and 
i Samnapur . . . Carnegie Steel Co. 
Group II. <| 12. Dharaini)ur. 
I 13. Kanaridlia. 
I 14. Jairasi. 
I 15. Kurthi-tola. 
j 16. Dharpiwiira. 
I 17. Other localities :— 
1^ Parsatols, Bodmghat. 
Group I comprises those deposits situated in the plain country 
to the west of the Wainganga, including those in the southern fringe 
of the range of hills north of Katangi. These deposits are mapped 
as occurring in an area occupied solely bv the metamorphic and crys- 
talline series, and are probably only a more metamorphosed facies 
of the deposits forming Grouj) II. The latter comprises those situated 
in the hill country to the east of the above-named river ; these deposits 
occur, as far as is known, near the base of the Chilpi Ghat series. 
I have visited all the above deposits except those mentioned under 
2a, 8a, 9o, 10, and 12-17. The deposits will be described in the sequel 
in the foregoing order. The numbers correspond with those on the 
geological map (Plate 43) of the Nagpur-Balaghat area ; but 2a, 8a, 
9a, and 17, are not shown on this map, because they were not known 
to me at the time the proofs of the map were passed. 
The ores of this district can be divided into two groups, according to 
Nature and quality of whether the deposits in which they occur are 
the ores. included in group I or 11. The ores of group I 
are typically mixtures of braunite and psilomelane, as in other parts of 
the Central Provinces. The mixtures may be either fine- or coarse- 
grained. Sometimes the braunite becomes predominant in quantity and 
coarsely crystalline, as in portions of the Thirori deposit. There is 
also the ore that 1 have called speckled ore. This consists of a small 
proportion of braunite granules scattered through a matrix that is in parts 
dull grey psilomelane, in parts the bright lead-like psilomelane, a.'id in 
parts soft, black, and soot-like, the latter usually occurring in cavernous 
spots, giving rise to the speckled appearance of the ore. This variety of 
ore is particularly common in the Jamrapani deposit. 
The ores of group II means, practically, those of the Balaghat deposit. 
The chief ore of this deposit is a compact fine-grained psilomelane. 
