History of Technology in India, Vol. I: From Antiquity to c. 1200 A.D. v1.c12.s1.t8: Boroi Magra

v1.c12.s1.t8.1

This ridge has a number of shallow workings and some deep ones. The use of small martars locally is established which were cut into the rock near shafts, as a means of crushing ore down to coarse sand size.