CiiAP. XXXVI.] 
NAGPUR : BELDONGRI. 
909 
in any of the Indian deposits and occurs at Beldongri as a band * one 
inch thick, in the fine-grained liard brannite-ps'ilonielane mixture at 
the point D, on the south-east side of the quarry. Hardness = i) to G*5, 
and .streak brownish black. Strongly magnetic, exhibiting polarity. 
A piece of this ore was analysed at the Imperial Institute with the result 
given on page 41. The analysis there given is ecpiivalent to :-- 
Manganese . . . . . . . . . . 44 02 
Iron 20-1!) 
Silica 1-77 
Phosphorus ........... 0'47 
Moisture . . O'lS 
Such ore, on account of its high phosphorus and low manganese, 
should be rejected when a high grade manganese-ore is required, although 
if such ore were found in quantity near the coast, it would be exported 
as a phosphoric manganiferous iron-ore. 
The mineralogical composition of this ore is discussed on page 46, 
and it is showTi to correspond to the formula ■3Mn304.2Fe203. I nave 
named it vredenhurgite. 
To show the character of the Beldongri ores as exported the hamples 
Nos. 25 and 26 were taken. They were analysed at the Imperial In- 
stitute with the following result : — 
Sample No. 25. 
Sample No. 26. 
Manganese peroxide .... 
49-77 
51-63 
Manganese protoxide .... 
27-90 
29-35 
Ferric oxide ..... 
8-05 
7-77 
Silica (combined) .... 
4-54 
4-80 
Silica (free) ..... 
0-54 
0-00 
Phosphoric oxide .... 
0-14 
0-14 
Moisture ...... 
1-17 
0-88 
These are equivalent to : — 
No. 25. 
No. 2G. 
Manganese ..... 
.53- 11 
54-28 
Iron ...... 
5-635 
5-44 
Silica ...... 
508 
4-80 
Phosphorus ..... 
0-06 
0-06 
Moisture ...... 
1-17 
0-88 
Sample 25 repre.s:nts 314 tons of .stacked ore, badly cleaned, many of the 
pieces of ore containing remains of spessartile ; a fair proportion of the ore was soft. 
Sample 26 represents 533 tons of stacked ore, much better cleaned. This ore 
was mostly rather soft and finally granular and occasional pieces showed a little 
spessartite. 
* I have since found that what is probably the same mineral occurs in small 
quantity in specimens I have collected at several other localities in the Central Prov- 
inces. A specimen from Garividi, Vizagapatam district, seems to be the same 
mineral (sec page 44). 
