History of Technology in India, Vol. I: From Antiquity to c. 1200 A.D. v1.c17.s2.t4.2
History of Technology in India, Vol. I: From Antiquity to c. 1200 A.D. v1.c17.s2.t4.2
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v1.c17.s2.t4.2
The etched carnelian beads belonged to all the three varieties as described by Beck (1933 & 1941): (a) etched in white by sodium carbonate or other alkali solutions, (b) etched in black by copper or iron nitrate on the white background or (c) on the natural colour. This confirms the continuity of the tradition of etched beads in India.