Chap. XXXIV.] chhindwaiia : sitapae. 
787 
talline, prismatic grey hoUandite, often with patches and streaks of 
bronze-tinted sitaparite, the contrast between these two minerals being 
heightened by the sunhght. The only ores that can compare with these 
for beauty are the beautiful blue-grey psilomelane of Kumsi in Mysore, 
and the sparkling finely crystalline hollandite of Balaghrit. But tieither 
of these are so attractive as the ore of Sitapar. It almost makes one 
shudder to think of the thousands of tons of these two beautiful and 
elsewhere rare minerals, hollandite and sitaparite, that are being shipped 
and used for the manufacture of ferro-manganese ! 
In working this deposit it will be necessary carefully to clean out 
^ ,. „ the white mineral, for otherwise the cargoes are likely 
Quiilitv of the ores. ,. , . ' . ^ , ° , . , ^^'i 
to run high m arsenic. 1 took a sample m 190.) 
by breaking pieces off the outcropping blocks over the whole of the 
hillock. As a fair proportion of the pieces of ore thus obtained 
contained the white mineral, I separated the sample into two, 10 and 10 A; 
10 being composed of the four manganese-ores, and lOA of all the pieces 
of ore that contained either the arsenate or the bronze micaceous mineral. 
The weights of the two samples were 59 lbs. and 38 lbs., respectively. 
The analyses were carried out at the Imperial Institute with the foUoAv- 
ing results : — 
Manganese peroxide 
Manganese protoxide 
Ferric oxide . . 
Baryta 
Combined silica 
Free silica 
Phosphoric oxide 
Arsenic oxide 
Moisture at 100°C. 
Sample 
No. 10. 
42-41 
36-28 
9-85 
1-03 
6-86 
0-09 
0-14 
0-003 
0-00 
Sample 
No. loA. 
39-58 
38-08 
10-05 
0-31 
7-90 
0-00 
0-27 
0-095 
0-01 
These are equivalent to 
Manganese 
Iron 
Silica (total) 
Phosphorus 
Arsenic 
54-97 
6-89 
6-05 
0-061 
0-002 
54-57 
7-03 
7-90 
0-118 
0 062 
The interesting feature of these analyses is the difference between the 
arsenic in the two samples. If the sample had not been divided into two 
portions the combined sample would have shown about 0-025 of arsenic. 
It is a' fortunate thing that the arsenate is so different in colour from the 
manganese-ores that the coolies can easily clean it out. 
