[Pramāṇa](https://indike.org/pramana/) › [Studies](https://indike.org/pramana/ins) › [Reference works](https://indike.org/pramana/ins.reference) › [An Encyclopaedia of Indian Archaeology](https://indike.org/pramana/ins.reference.ghosh-1989) › v1.c24.s2.18 # An Encyclopaedia of Indian Archaeology v1.c24.s2.18 An Encyclopaedia of Indian Archaeology v1.c24.s2.18 - **Language:** English ### [v1.c24.s2.18](https://indike.org/pramana/ins.reference.ghosh-1989.v1.c24.s2.18) \*19.2.9 Technology.\* According to Agrawal, 1971, p. 242, who has carried out spectroscopic and metallographic analysis of a number of Copper Hoard artefacts, their authors did not know alloying and while knowing the close-casting technique did not use cold work and annealing \[16.9.1\]. In metal forging the Copper Hoards artefacts are different from that of the Harappa and Chalcolithic cultures. The Harappans \[4.9\] deliberately used arsenic, lead and tin alloying, the AHAR² \[4.14.1\] people used lead only and the Malwa \[4.14.5\] and Jorwe \[4.14.6\] people employed lead and tin alloying, but the Copper Hoard objects are generally of pure copper. - [Previous: v1.c24.s2.17](https://indike.org/pramana/ins.reference.ghosh-1989.v1.c24.s2.17) - [Next: v1.c24.s2.19](https://indike.org/pramana/ins.reference.ghosh-1989.v1.c24.s2.19) - [Up: v1.c24.s2](https://indike.org/pramana/ins.reference.ghosh-1989.v1.c24.s2) --- Source: [https://indike.org/pramana/ins.reference.ghosh-1989.v1.c24.s2.18](https://indike.org/pramana/ins.reference.ghosh-1989.v1.c24.s2.18) · Pramāṇa