1144 
MANGANESE DEPOSITS OF INDIA : DESCRIPTIVE. [ PaRT IV: 
In the following are given some analyses of the Shankargudda 
ores by Mr. Fawcitt. No3. 1 to 4 are hand -specimens and No. 5 
a sample of 1,5D0 tons of stacked ore, badly sorted, and not cleaned : — 
No. 1. 
1 
No. 2. j 
No. 3. 
No. 4. [ 
1 
No. 5. 
MnO„ . 
• 
85-42 
78-64 1 
58-81 
56-89 1 
MnO 
2-06 
5-06 
5-03 
1 
6-07 
Fe,,03 . 
6-06 
! 
6-89 i 
26-16 
2403 
AI3O3 . 
• 
2-38 
2-87 
3-28 
602 
CaO 
• 
0-50 
0-72 
0-56 
0-56 
MgO . . . 
• • 
0-56 
0-68 
0-72 
0-51 
Alkalies . • 
0-32 
0-89 
M5 
0-93 
SiO, 
101 
1-61 
113 
3-66 
3-20 
Combined water 
1-65 
2-57 
3-05 
1-42 
99-96 
99-93 
99-89 
100-09 
Manganese . 
55-6 
53-69 
40-92 
40-67 
38-06 
Iron ... 
• • 
4-24 
4-68 
18-31 
16-82 
18-48 
1 
Phosphorus 
0- 
06 
j 0-063 
Notes : — 
1. Mainly hard bright crystalline mineral scratched by a knife with great difiBculty, 
with some psilomelane and wad. 
2. Dull grey psilomelane, with minute cavities or cells, and a very small proportion 
of minute bright specks. 
3. Very smooth dark grey psilomelane, tending to be load-like. 
4. Pisolitic psilomelane, with lead-like pisolites up to i inch diameter, sot in a 
matrix of dull grey psilomelane. 
As far as I am aware no ore had been shipped from Shankargudda 
up to September 1907. 
12, Tirandup. 
Mr. Slater also recordsi the find of a loose block of manganese-ore 
3 furlongs east of Tirandur, a small village midway between Manda- 
1 Loe. tit., p. 64. 
