214. KING: KADAPAH AND KARNUL FORMATIONS. [PART TV. - 
octahedral crystals, and are stained with brownish black ferruginous 
coloring. The strings of quartz have been deposited in north-north- 
east south-south-west fissures having a dip of 60° westward; the strata 
lying at 50° to east-by-north. The exposed partings of the beds are filled 
with a brown earthy breccia or conglomerate* of minute debris of 
ferruginously blackened quartz m a matrix of ferruginous kunkur. 
The old workings are to a great extent filled up with the excavated 
fragments of rock, and are now overgrown with jungle. 
Other beds of the same silicious limestone, also impregnated with, 
strings of quartz, occur at short distances to the westward, but no traces 
of lead were seen in these. 
Further south and west of Jungumrajpilly, there are again 
numerous old galleries excavated in the same series of beds, which were 
visited by Mr. Oldham and found to contain traces of lead occurring in 
the same way. He writes :—“ South-westwards of Jungumrajpilly, en- 
tering the pass west-south-west of village, the slates are rather arenaceous, 
dip 30? east-by-north, and continue at low angles. Near the top of the 
pass a long line of pits runs southwards, which were formerly opened for 
extracting lead ore. The sulphide occurs in minute granular form, in a 
hard band of quartzite (calcareous), very similar to that at Jungumraj- 
pilly, but quite a different band. This is intersected by a few quartz 
veins and many ferruginous earthy bands in which the lead sometimes 
occurs, though apparently more commonly in the body of the quartzite 
itself near the quartz veins. It has been well extracted, for I was only 
able to obtain one or two small pieces of ore. The quartzite band dips 
generally west-by-south at low angles, and the pits seem to be chiefly in 
an earthy and sometimes brecciated portion of it, next the overlying 
slates, and I think also next those which underlie, giving the appearance 
almost of two lodes of ore, one at each side of the*band. No traces of 
* Evidently a recent deposit. 
( 914 ) 
