The general character of the Aravalli
is its primitive formation granite, reposing in variety of angle ,
the general dip is to the east on massive, compact, dark blue
slate, the latter rarely appearing much above the surface or base
of the superincumbent granite. The internal valleys abound in
variegated quartz and a variety of schistous slate of every hue,
which gives a most singular appearance to the roofs of the houses
and temples when the sun shines upon them.In the diverging
ridges west of Ajmer the summits are quite dazzling with the
enormous masses of vitreous rose-coloured quartz.
The Aravalli and its subordinate hills are rich in both mineral
and metallic products alone can be attributed the resources which enabled to struggle against power, and to raise
those magnificent structures.
The mines their produce a monopoly, increasing
the revenue, commercial duties, mines....
The tin-mines of Mewar were once very productive, and yielded,
it is asserted, no inconsiderable portion of silver : but the caste
of miners is extinct, and political reasons, during the Mogul
domination, led to the concealment of such sources of wealth.
Copper of a very fine description is likewise abundant, and supplies
the currency ; and the chief of Salumbar even coins by sufferance
from the mines on his own estate... Surma
Oldest of all the physical features which intersect the continent is
the range of mountains known as the Aravallis, which strilies across the
Peninsula from north-east to south-west, overlooking the sandy wastes of
Rajasthan. The Aravallis are but the depressed and degraded relics of a
far more prominent mountain system, which stood, in Palaeozoic times, on
the edge of the Rajasthan. The disintegrated rocks which once formed
part of the Aravallis are now spread out in wide red-stone plains to the
east
The garnet, amethystine
quartz, rock crystal, the chrysolite,Zinc , Silver and inferior kinds of the
emerald family are all to be found within Mewar .
