[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.s5.t3.8 # Minerals and Metals in Ancient India v1.c19.s5.t3.8 Minerals and Metals in Ancient India v1.c19.s5.t3.8 - **Language:** English ### [v1.c19.s5.t3.8](https://indike.org/pramana/ins.science.biswas-1996.v1.c19.s5.t3.8) | | Samples | | | | | | | Slag No. 1 | Slag No. 2 | Slag No. 3 | Slag No. 4 | Slag No.5 | | Fe₂O₃ | 63.76 | 65.36 | 30.4 | 66.6 | 56.0 | | SiO₂ | 29.39 | 25.34 | 57.3 | 25.6 | 30.5 | | CaO | 0.86 | 2.41 | 8.4 | 1.3 | 2.2 | | MgO | 0.64 | 0.97 | 0.6 | 0.2 | — | | MnO₂ | 1.42 | Trace | Trace | — | — | | Al₂O₃ | 3.14 | 4.76 | 3.1 | 5.0 | 4.4 | | P₂O₅ | 0.77 | 0.69 | — | — | — | | Total | 99.98 | 99.53 | 99.8 | 98.7 | 93.1 | - [Previous: v1.c19.s5.t3.7](https://indike.org/pramana/ins.science.biswas-1996.v1.c19.s5.t3.7) - [Next: v1.c19.s5.t3.9](https://indike.org/pramana/ins.science.biswas-1996.v1.c19.s5.t3.9) - [Up: v1.c19.s5.t3](https://indike.org/pramana/ins.science.biswas-1996.v1.c19.s5.t3) --- Source: [https://indike.org/pramana/ins.science.biswas-1996.v1.c19.s5.t3.8](https://indike.org/pramana/ins.science.biswas-1996.v1.c19.s5.t3.8) · Pramāṇa