120 Mr Hardie's Observations on the 



sure to the air, like the pearl-spar ; of which mineral, indeed, it 

 seemed to form a variety- Bv a rough analysis, it appeared to 

 contain about 50 parts in 100 of carbonate of lime, 20 of silica, 

 and the rest of carbonate of iron with traces of manganese. It 

 exhibited numerous drusy cavities, in some of which quartz- 

 crystals were seen, in others calcareous spar, either crystallized 

 or in a botryoidal or stalactitic form ; while all were incrusted 

 with a substance resembling brown iron ochre (carbonate of 

 iron). 



Between the Cheetore range and the range which passes 

 Oudeypore, we have, as I have already stated, plains of large 

 extent, from the surface of which are seen rising several de- 

 tached hills and mountain groups. For about forty miles north 

 of Oudeypore, the country between these two ranges presents 

 the usual quartz-rock, with clay-slate and chlorite slate formations. 

 The detached hills are principally composed of the quartz, and 

 present the same appearances of precipices, &c. which we have 

 described as occurring in the Bheel district. North of this we 

 find granite, gneiss, mica-slatc, primitive greenstone and horn- 

 blende-slatCj with the universally distributed quartz-rock. The 

 strata frequently appear at the surface of the plain ; and I had 

 in many situations an opportunity of examining their various 

 alternations, more especially in the more northern parts of 

 Meywar. These consisted of different granitic rocks, in which 

 the garnet is a very abundant mineral ; indeed, the whole sur- 

 face of the plains is covered with it, giving to the sand a red 

 appearance. Both the precious and common garnets are found. 

 The former are small, and seldom in perfect crystals. The 

 latter are large, often of the size of a hen's egg, opaque or 

 translucent on the edges, and regularlv crystallized in the usual 

 forms. I also observed a rock in this portion of the district, 

 which was almost entirely composed of quartz and felspar. The 

 felspar was of a milky- white colour; and longitudinal filament- 

 ous stripes pass through its substance, of a more opaque white- 

 ness than the rest. This mineral, with the quartz, is arranged 

 in irregular portions of pretty considerable size, and which are 

 intimately connected together. Felspar also occurs in this for- 

 mation, in thin seams, which run parallel to the strata. It is 

 nearly transparent, of a greenish colour, and exhibiting slightly 



