IIU 
MANGANESE DEPOSITS OP INDIA : DESCRIPTIVE. [ PaRT IV 
to find where they came from. Therefore I specially went over this 
route ami found many pebbles of spandite-rock blackened outside, and 
one of rhodonite-rock containing orange garnets. It was only after 
several fruitless deviations from the path that I succeeded in finding 
the rock in situ in a small conical hill 100 feet or more high, situated 
to the south of the path 2 or 3 furlongs west of Chintelavalsa 
village. 
Kh = khoiidalite ; Sc = scu politic or calcareous gneisses. 
Hjir=biotite-gneiss : Mn = inanganese-pyroxenite. 
Fig.92 — Section across hill near Chintelavalsa. 
Owing to the debris the thickness of the rocks could not be deter- 
mined, but Fig. 92 gives a rough idea of their succession. 
Two specimens of the calcareous gneisses were collected. The typical 
rock in bands Nos. 2 and 5 is a medium-grained 
The scapolitic or calea- whitish rock composed essentia'ly of pale green 
reous gneisses. ^ ,i • m. 
pyroxene, scapolite, and wollastonite. Ihe 
latter is very noticeable in the hand-specimen on account of its pearly 
lustre. The rock also contains a small amount of calcite and quartz. 
The upper band must be at least 50 feet thick. In it there is a layer 3 
to 4 inches thick of a rather fine-grained pyroxene-scapolite-rock, these 
two minerals be ng in about equal proportions The rock also contains 
a little sphene and a trace of calcite. 
This rock immediately underlies the manganese-silicate band. 
rp. . . ^.^ Unfortunately I did not collect a specimen 
of it, because it looked like an ordinary 
rather fine-grained foliated gneiss of biotite , quartz, and felspar ; but 
