89(5 
MANGANESE DEPOSITS OF INDIA : DESCRIPTIVE. [PakT IV : 
representing some 18 tons of ore and the analysis of it at the Imperial 
Institute showed : — 
Sait.p'e No. 30. 
Manganese dioxide . . . . . . .51-62 
Manganese protoxide . . . . . . .28-98 
Ferric oxide . . , . . . . .5-39 
Silica (combined) . . . . . . . 6-00 
Silica (free) . . . . . . . . 2'93 
Phosphoric oxide . . . . . . . 1'49 
Moisture at 100°C 0-11 
This partial analysis indicates that the ores are a mixture of about 
G0% braunite and 34% psilomelane, with the balance of quartz and 
apatite. They are in fact very similar to the Mansar ores, the analyses of 
which are given on page 887. The above analysis corresponds to : — 
Manganese . . . . . . . .55-15 
Iron . . . . . . . .3-77 
Silica 8*93 
Phosphorus . . . . . . . .0*65 
Moisture 0-11 
Hence, except for the high phosphorus contents, this ore is of very good 
quality. It could doubtless, if obtainable in quantity (which it is not, 
unless the ore-body in situ be found) be sold as a phosphoric ore for the 
same purposes as the Kiljlidongri and Vizagapatam ores. 
GROUP IV. 
12 Parsioni and Bansinghi. 
13. Dumri Kalan. 
14. Satak I and II. 
15. Beldongri. 
16. Nagardhan. 
17. NandapuPi. 
18. Lohdongpi. 
19. Kaeharwahi. 
20. waregaon. 
21. Khandala. 
The Parsioni-Bansinghi deposit lies some 5 miles west-north -west of 
the Dumri deposit, and it is doubtful if it forms a part of the same band 
of deposits as the remainder, lying as it does some distance to the north 
of their line of strike. The remaining deposits form a line about 12 miles 
long stretching almost due east from Dumri Kalan to Khandala. They 
lie in alluvial country about -i miles south of the Rilmtek range of quartz- 
ite hills. Each deposit is only a few hundred yards in length, and either 
forms a small hillock, or is being worked by a quarry in the alluvium, the 
