Chap. IV. ] hollandite. 93 
These analyses, together with the analysiis of the massive hoUaniita 
from Balaghat, are given below :— 
Table 10. 
Amlyses of hollandite. 
Nu'iiber of Specimen. 
Balaghat. 
1146 
Gowari 
Warhona. 
7521 
Junawani. 
10621 
MangcHie^-'e peroxide JAIn02) .... 
7505 
71-25 
7244 
]VIano",in6?e protoxide (MuO) . . , , 
902 
1420 
9" 09 
Ferric oxide (KeoOj). . • > . . 
4 43 
5- 73 
9-26 
Alumina (AI2O3) . ..... 
104 
0-42 
109 
Bnrvta ^BaOt 
2- 96 
7-22 
5-55 
Lime (CaO) 
0-31 
0-38 
2-50 
Magnesia (MgO) ...... 
0-36 
0-35 
Potash (K2O) 
3-31 
Soda (Na20) 
057 
Combined silica (Si02) ..... 
130 
Free silica (Si02) ...... 
010 
Sulphur . . ..... 
0021 
Phosphoric oxide (P2O5) ... 
0-046 
•• 
Arsenic oxide (AS2O5) ..... 
nil 
Cobaltous oxide (CoO) ..... 
005 
Nickelous oxide (NiO) ..... 
nil 
Cupric oxide (CuO) ...... 
trace 
Lead oxide (PbO) 
nil 
Zinc oxide (ZnO) 
trace 
Titanic oxide (Ti02) 
0-03 
Chlorine and fluorine ..... 
nil 
Combined water (H2O) 
110 
0-45 
0()7 
Moisture at 100°C 
015 
Carbonic oxide (CO2) ..... 
nil 
99-847 
100 00 
100-00 
Manganese ....... 
54-42 
6604 
52-83 
Iron ....... 
3- 10 
401 
6-48 
Sili'^a (total) 
1-40 
Phosphorus ....... 
0-02 
1 Since these calculations were made the following additional constituents have 
been determined at the Imperial Institute : — 
1 
752 
1002 
NiO, C03O4. CuO 
0011* 
0-048t 
K2O 
0 22 
0-33 
Na20 
()-23 
0.32 
* Chiefly cobalt, 
t Chiefly nickel. 
TJisee would of course correspond to small quantities of manganates. 
