[Pramāṇa](https://indike.org/pramana/) › [Studies](https://indike.org/pramana/ins) › [Science, technology and education](https://indike.org/pramana/ins.science) › [Minerals and Metals in Ancient India](https://indike.org/pramana/ins.science.biswas-1996) › v1.c19.s6.t8.7 # Minerals and Metals in Ancient India v1.c19.s6.t8.7 Minerals and Metals in Ancient India v1.c19.s6.t8.7 - **Language:** English ### [v1.c19.s6.t8.7](https://indike.org/pramana/ins.science.biswas-1996.v1.c19.s6.t8.7) During the NBPW era, starting from 600 BC, use of sajji maṭṭi as the source of soda and lime, making of glass and uses of agate, carnelian, quartz, jasper etc. were intensified. Varieties of beads, stone and metal objects were fabricated and used. During the Maurya and Śuṅga dynasty, copper and even lead coins were used. India had indeed entered the phase of irreversible urbanisation at the start of the NBPW era. - [Previous: v1.c19.s6.t8.6](https://indike.org/pramana/ins.science.biswas-1996.v1.c19.s6.t8.6) - [Next: v1.c19.s6.t8.8](https://indike.org/pramana/ins.science.biswas-1996.v1.c19.s6.t8.8) - [Up: v1.c19.s6.t8](https://indike.org/pramana/ins.science.biswas-1996.v1.c19.s6.t8) --- Source: [https://indike.org/pramana/ins.science.biswas-1996.v1.c19.s6.t8.7](https://indike.org/pramana/ins.science.biswas-1996.v1.c19.s6.t8.7) · Pramāṇa