CHAP. 2.| KADAPAH FORMATION.—PAUPUGNEE BEDS: SERPENTINE. 165 
Further north again, beyond the Penn-air, some of the beds in the 
Limestones with ser- Upper part of the series are seamed with serpentine, 
E and there are strong traces of trap close by, which, 
as far as could be made out in a part of the country so obscured by 
cotton-soil, appears to underlie these evidently altered beds of limestone. 
The locality is about six miles south of Ryalcheroo,* in a low hill 
to the east-south-east of Vengunnapully. 
The strata crop out round the western side of this hill and show 
one or two thick beds of pale green and white limestone, thinly inter- 
laminated with pale green or whitish semi-translucent serpentine, There 
are besides thicker seams and rocks of the mineral; but specimens 
obtained from these are very brittle, and break into irregular semi-con- 
choidal and cuboidal little masses which are two small to be of any use 
except for very small ornaments. Possibly, however, deeper quarrying 
might produce less friable specimens.t The following is a sketch of 
the edge of one of the beds, showing how the serpentine occurs in the 
limestone :— 
Serpentine palegreen] 
mired 
RD EU DEUM EN 
— DOM 
Fig. 25. Ryalcheroo Serpentine.—Part of the outcrop of one of the serpentinous beds, showing how 
the mineral is segregated. The broader and lighter bands (s) are those which are most serpentinous in their 
composition, and these are laminated with thin and rapidly undulating layers of ealeareous matter, while 
the darker and more numerously laminated bands are the more ealeareous ones. 
* In the western edge of the Bellary District, on the high road, or north-west line of 
railway, between Cuddapah and Gooty. 
T At present the workmen at Ryalcheroo only carve ornaments out of small blocks of 
the pale green (waved with white and dark grey stripes) serpentinous beds of limestone. 
( 165 ) 
