Chap. XLT. ] 
SHIMOGA : TREASURY HILL. 
1147 
17. Treasury Hill. 
This is situated about ^ mile south of Hoshalli No. 1. This name 
has been given to it on account of the find of some fine specimens of 
radiate pyrolusite lining cavities. This pyrolusite is rather hard and 
resembles closely the pseudo-manganite of the Sandur Hills. The 
mode of occurrence of the ores at this deposit is diflferent to what I have 
seen at any other deposit in India. The ore consists of ratlier lead- 
like psiloiiielane, often intimately associated with a compact rather 
horny iron-ore of red colour, giving a red streak with a tinge of orange 
in it. This ore tends towards a limonite colour in places. I shall refer 
to it here as hematite. The most interesting section is seen in a trench 
cut in a N. N. E. direction at right angles to the strike of the rocks. 
The section shown in this trench was as follows, starting from the 
N. N. E. end :— 
Black wad 12' + 
Psilomelane and hematite . . . . .3' 
Yellow ochre . . . . . . • 6* 
Psilomelane with yellow ochre and some hematite . 2' 9" 
Yellow ochre with indications of a band of the mixed 
iron- and manganese-ore 7' 9'' 
Psilomelane with some hematite . . . .2' 
Yellow ochre . . . . . . . 3' 7' 
Psilomelane 0' 3" 
Yellow ochre with signs of a psilomelane band . . 4' 2' 
Manganese-ore (psilomelane and pyrolusite) . , 0' 4' 
Yellow ochre . . . . . . . 1' -f- 
The psilomelane is greater in quantity than the hematite in most of 
the bands. It also tends to occur in isolated concretions in the ochre, 
and there are sometimes concretionary projections from the ore-beds 
into the ochre. One of the bands of ore shown in the above trench is 
further exposed by a strike trench some 9 paces long as a vertical surface 
of ore showing slickensides grooving, and overturned sometimes to the 
south side and sometimes to the north. In the ore-stacks the ore is all 
in big lumps, and consists of mixtures of psilomelane with horny hema- 
tite, and some horny Hmonite ; it often contains big yellow ochre 
patches. Some pieces show some remains of quartzite ; these must 
have been derived fi'om a different part of the deposit. There ia also 
some of the pisoUtic ore. 
