152 
A JOURNEY FROM MADRAS THROUGH 
CHAPTER The natives here are either not well acquainted with the quarries 
of their country, or else pretend great ignorance concerning them. 
May 20, &c. Although the country abounds in a variety of ornamental stones, 
Quarries. I °^ serve only two about Seringapatam, that have received a marble 
polish. The one is the black stone used in Hyder's monument, 
the quarry for which I shall hereafter have an opportunity of ex- 
amining. The other is a most beautiful green stone, of which some 
bases for pillars were found in the palace ; but no person can tell 
from whence they were brought. It has the appearance of quartz 
stained by copper ; but is verifiable, per se , in a moderate heat, and 
gives out no copper to the vitriolic acid. 
The two finest stones near Seringapatam are found at Kingalu 
CopalUj and Canary Cadu, both near the northern branch of the 
river. The former is a compact granite, consisting of dark red 
felspar, red and yellowish quartz, and black mica. Some of the yel- 
low particles appear to be felspar. The prevailing colour is owing to 
the dark red minute particles of felspar ; but it also contains large 
concretions of the same stone, which have a bright red colour. 
I had a specimen resembling this brought me (I do not know from 
what place), in which the red felspar predominated over the 
quartz, and the mica was in a very small proportion. The grains 
are small ; it is* also a very ornamental stone. 
The stone from Canary Cadu may be called either a hornstone por- 
phyry, or a granatine. Its basis is a dark brown hornstone, in 
which are imbedded grey, yellow, and red felspars, and black shorl. 
Like the former, it is very compact. 
The granite, of which the walls of Mysore and Nuzerbar have 
been formed, is loose-grained, and consists of glassy quartz, green 
and black mica, and reddish felspar. The mica is in large quantity, 
and the felspar in a smaller proportion than usual. 
Specimens of a fine-grained granite were also brought me from 
some quarry in the neighbourhood, consisting of black mica, grey 
felspar, and yellowish brown quartz, which gives the predominating 
