CHAP. 2. | ECONOMIC RESOURCES. 911 
Iron ore is pretty generally distributed among the different groups 
of both formations. The two limestone groups 
Iron ore. P 
of the KARNULS are often full of octahedra and 
cubes of iron pyrites, and the quartzites are frequently ferruginous. 
The ore is, however, always worked in the KaDAPAH series, where 
Worked generally i» lt occurs in layers among the beds, or in veins, 
the KADAPAHS. . 
strings and nests. 
The finest occurrence is in the Gunnygull hill ridge, south of 
Soest d Kurnool, which is seamed with great veins of 
very pure specular iron ore. These occur in 
the east-west runs of fault-rock on the northern slopes of this faulted 
ridge: and very much crushed and altered quartzite strata adjacent to 
the fault-rock are highly charged with the ore. A great cone-like 
mass of almost pure specular iron ore rises out of the base of the 
northern slopes; but it is impossible to say how it occurs here, the slope 
of the hill being so completely covered by debris. The fault-rock all 
over Gunnygull hill, occurring as 16 does in several dykes, is generally 
seamed with strings and irregular masses of specular iron ore, the 
red hematite variety, but micaceous, granular, more massive or 
botryoidal. 
South-east of Ramulkota, on this northern flank, there is a 
low and parallel ridge made up of altered quartzites which are highly 
impregnated and stringed with specular iron ore. In fact, this ridge is 
a perfect mine of iron. The ferruginous beds of quartzite are dipping 
northwards at high angles. This system of fault-rock dykes runs out 
westwards past Yeldoorly ; and near a small tank between Ramulkota 
and Yeldoorly, a hill on its south side is largely made up of massive 
specular iron ore, especially the upper half of it. 
The great drawback to the evident richness of this iron-field is 
the scarcity of fuel, of which there can only be a small supply from the 
low and thin jungle in the hilly regions to the southwards. The opening 
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