1831.] 
Ttajmahal Hills. 
35 
more readily admitted. In this part of the district there are many such rocks, and 
they are sometimes coloured in the same manner as the jasper. In some cases the 
mass consists of thin alternate layers of this aggregate, and of simple fat quartz, as 
on the detached hill called Khejuri, a little south from Tarapur. 
I have already mentioned, that large masses of quartz, which do not contain 
some mica, are seldom found, but when the mica and quartz are, as it were, inter- 
nally combined in minute parts placed parallel to each other, they form a stone 
which has been called shistose mica 3 ; and on the hill Raula, a part of the transverse 
chain reaching to Jathaurnath, may be found stones in all the intermediate stages, 
from pure granular quartz to the perfect shistose mica. A little east from Rauta, 
near a hill caled Barai, this last substance is found, in a considerable mass, forming 
a small hill, called Barapahar, and is wrought for making the stones of hand mills. 
It is by the natives called the Dudi stone, and is divided into irregular trapezoidal 
flags separated from each other. 1st. By vertual fissures, which run east and west, at 
from 2 to 4 feet from each other. 2dly, By other vertual fissures, which cross the for- 
mer at right angles generally, at greater distances ; and finally, by horizontal fis- 
sures, at the distance of from 6 inches to 1 foot ; but these flags are so much shat- 
tered by subordinate fissures, that solid masses, fit even for making the stone of 
a hand mill, cannot be every where procured. This stone cuts readily with a chisel, 
and does not readily tarnish in the air. It has a pale greenish hue from the mica, 
perhaps, approaching somewhat to the nature of chlorite. In some places it is stain- 
ed red. The same kind of stone is found at Tahuyar Nagar-ghat, in the same vicinity, 
but is not wrought. 
Where the aggregate consists of 2 distinct matters mixed together without any 
apparent order, it is usually called a granitel 4 , and some such are found on the hill 
Rauta, above mentioned, especially one seemingly composed of quartz and chlorite ; 
one composed by black very heavy schorl, or perhaps micaceous iron ore, with small 
spots of quartz ; and finally, one composed of white quartz, with a smaller propor- 
tion of the same black matter. These latter aggregates may be perhaps considered 
as adventitious in this division of the minerals, as they are on the boundary of a 
territory abounding in such, and quite different from the general mass of which I 
am now treating. 
The only one, which I consider as properly belonging to this mineral range, is a 
stone composing the small hill called the Kamuya (working place) of Laheta, 15 or 
16 miles southerly from Mungger. It has been long wrought for the stones of hand 
mills. The quarry is on the southern declivity of the hill, runs nearly east and 
west, and has been opened in different places for a considerable extent. The exca- 
vations are now pretty large. One of them, the largest that I saw, might be 200 
feet long, 20 wide, and 12 deep ; but so irregularly and unskilfully wrought, and so 
clogged with rubbish, that the proper extent of good stone is not readily determina- 
ble ; and this good stone is bounded on each side by kinds, which in the eye of 
the Mineralogist scarcely differ ; but which the workmen reject as too hard, and 
difficult to work. The workmen take a piece suitable for their purpose, whenever 
they can find it most easily j cut it into shape on the spot, and then look for another, 
until the whole quarry is so filled with rubbish, that no more millstones are pro- 
8 Mica slate, according to most Geologists, or Micaceous Schist, according to Mac- 
culloch. The latter term is, perhaps, preferable, inasmuch as the rock in question has 
scarcely ever any real resemblance to the slaty structure. The terms schist and slate 
afford us the means of discriminating two structures that appear, at first sight, 
exceedingly different. — E d. 
4 See note, p. 5. 
