NERBUDDA DISTRICT. 123 



felspar granite ; this latter is the rock seen at Hindia. A similar red fels- 

 par granite forms a range of hills in the southern portion of the country 

 surveyed, and is also well seen in the Sita Riva 'section near Berk-eras 

 In several places in the Southern part of the country examined, a 



very beautiful pegmatite has been observed. Near 

 Pegmatite . 



Poplia Village a large spread of it occurs, it is 

 composed pf bright pink felspar in large crystals, and embedded in clear 

 colorless glassy quartz ; here and there through the mass little specks of 

 black mica are scattered and patches of a pale green mineral occur irre- 

 gularly. The stone is a very beautiful material and will some day be used 

 for ornamental purposes, both the -pattern traced by the crystals, and the 

 colors, combining to produce a very fine effect. 



In the valley of the Johilla River, in Sohagpur district, a variety of 



Syenitic Porphyry the metamor P hic r° cks > very characteristic of that 

 with red felspar. series is largely developed in connection with a 



syenitic porphyry, somewhat like the general description above given. 

 Here, however, the felspar of the base, or matrix, as well as that of the 

 detached crystals, is red, the crystals themselves being much larger than 

 is usual and also more numerous ; many of them exceed 2 inches in 

 length, and in places form of themselves more than half the mass. Here 



Pseudo-gneissosechar- a P*** ° f tlie SeCtion eX P 0ses a rock which might 

 acter - readily be mistaken for one of sedimentary 



origin but which is really part of the granite of this last men- 

 tioned variety. The felspar crystals have, from some local cause, all 

 arranged themselves with their longer axes parallel, and a completely 

 laminated aspect is the result. This is however soon seen not to have 

 been caused by a deposition or arrangement of the crystals by water, for, 

 close examination shows that the crystals are really embedded in a crys- 

 talline mass as well as quite angular and not rounded, and the character 

 is itself very local, parallelism soon ceasing to exist, and the normal 

 irregularity of arrangement obtaining again. 



