lxx Report of the Miner alogical Survey [No. 126*. 



probably 300 feet wide, (the depth is not known), consisting of these 

 huge stones, great part of them now far above the reach of the highest 

 floods. It is not to be understood, if they had been moved by causes 

 still in operation, why none of them should have travelled a little farther. 



146. Ascending to Sooralee from the bed of the Mundaknee, chlori- 

 tic schist is found established, extending for some miles beyond the 

 village to the foot of the Okrooaree Pass, which separates the Purgunnahs 

 of Budhan and Dussolee. It is as usual much intermixed with quartz 

 rock ; some specimens of a straight laminar structure have an emerald 

 green colour, and an almost metallic brilliancy. This is a beautiful rock. 

 On the descent from the Pass gneiss is found of a small grain, a very 

 compact rock. The dip is N. 80° E. the angle of elevation 60°, hence 

 passing by the village of Koon to Choptah, quartz rock and chloritic 

 schist prevail irregularly mixed. The dip generally N. E., the inclination 

 25°. At Chobtah, they are exchanged for an earthy micaceous schist, 

 which however must be of very limited extent. 



147. Below this village, on the road to Jak, the rock is of a less 

 definite structure, being an irregular mixture of dolomite and talc ; 

 sometimes the grains are small and the mixture intimate, sometimes 

 they are larger, and the aggregation of a granitic character, i. e. each 

 mineral perfectly distinct,- though mutually impressing each other. 

 These distinct concretions become so large, that each mineral may 

 be found forming the substance of distinct blocks. This type of rock 

 occupies but a small space, being found only on the right bank of the 

 glen below Chobtah ; on ascending the other side, fragments of a granitic 

 rock are met with, but of peculiar mineral character. The ingredients 

 appear to be a dark bluish grey felspar, quartz and talc, the grain 

 is small, the rock exceedingly tough and hard, with an amorphous struc- 

 ture, although some specimens shewed something like a transition into 

 the schistose. This rock was not seen in situ, only in fragments, and 

 has near been observed in any other locality. It is a very beautiful 

 rock, and would be extremely ornamental if cut and polished. 



148. Near Jak, beds of hornblende schist occur, apparently gradua- 

 ting into quartz rock ; on the quartz rock, which contains felspar, 

 rests a bed of chloritic schist of scaly composition and unctuous feel. 

 These two rocks are perfectly distinct, and the line of separation strong- 

 ly drawn. The dip is N. 60. E. and the inclination 40. Below them in 



