970 
MA^JGaNESE deposits of INDIA : DESCRIPTIVE. [PaRT I V 
tainiiig a little quartz, and was analysed at the Imperial Institute with 
the following result : — 
Scmplc No. 21. 
Per cent. 
Mangsnrse peroxide 
Manganese protoxide 
Ferric oxide 
Silica (combined) 
Silica (free) 
Phosphoric oxide 
Jloistiire at 100°C. 
Carbon dioxide . 
•50 
•16 
•71 
•8G 
•14 
•32 
•34 
•06 
Judging from the combined silica this sample must have consisted 
of about 59 per cent, braunite with about 37 per cent, of hollandite and 
4 per cent, of quartz, apatite, moisture, etc. The analysis is equivalent 
to:— 
Manganese 
Iron 
Silica 
Phosphorus 
Moisture . 
54^71 
3 •SO 
9^00 
0-14 
0^34 
Samples taken by Mr. Goodchild gave the following results on analy- 
sis :- 
A. 
B. 
C. 
D. 
Manganese .... 
51-67 
53-92 
27-75 
41-54 
Iron ..... 
3-35 
2-38 
9-49 
2-72 
Silica 
2^40 
5-65 
33-75 
8-65 
Phosphorus .... 
0^06 
0-10 
0-04 
0-10 
A. Average selected ore. 
B. Loose ore from west end of deposit. 
C. Siliceous ore from iti situ towards west end of deposit. 
D. Ore from in situ about middle of deposit. 
In September 1906, Mr. Vredenburg found that a pit in the ore at C 
had exposed some hematite intercalated in the manganese-ore. Some 
of the specimens collected are massive and finely crystalline, and some 
are more coarsely crystalline, so that they could 
almost be called specular hematite. 
Hematite. 
30. Junawani. 
(Madhu Lall Doogar Mining Syndicate.) 
This continuation of the Mandvi Bir band can be divided into 3 parts 
A, B, and C, reckoning from west to east. Junawani A stretches for 
about 250 yards on either side of /\ 1357. The most western pit 
shows bands of hard- grey crystalline ore in grey crystalline limestone. 
