History of Technology in India, Vol. I: From Antiquity to c. 1200 A.D. v1.c12.s1.t9: Rajpura-Dariba Mines
History of Technology in India, Vol. I: From Antiquity to c. 1200 A.D. v1.c12.s1.t9
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Rajpura-Dariba Mines
v1.c12.s1.t9.1
At Rajpura-Dariba metamorphic calc-silicate rocks derived from mineralised sandy dolomite rocks of pre-cambrian age form conspicuous rigdes, with the plain formed from much greater thickness of more easily weathered graphite schist.
v1.c12.s1.t9.2
There are three lodes in the deposit: the East lode, the North lode and the South lode. Boreholes have proved ancient workings on the East lode at a depth of 254 m, with a sample of timber at this depth radio carbon dated at about 1840 years before present. Ancient working are also found on the South and North lodes, with radio carbon dates for wood samples from South lode from 3120 to 2200 years.
v1.c12.s1.t9.3
Lead was the chief product, for silver refining, but some copper, probably from secondary mineralization ore, was mined as late as 1831. Metallurgical waste includes lead slags, litharge from silver refining and copper slags but no zinc slag, of both ancient and medieval periods.