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# Minerals and Metals in Ancient India v1.c19.s5.t3.6

Minerals and Metals in Ancient India v1.c19.s5.t3.6

- **Language:** English

### [v1.c19.s5.t3.6](https://indike.org/pramana/ins.science.biswas-1996.v1.c19.s5.t3.6)

| | Samples | | | |  
| | 1 | 2 | 3 | 4 |  
| Fe₂O₃ | 89.36 | — | — | — |  
| SiO₂ | 0.53 | 1.80 | 1.51 | 1.32 |  
| Al₂O₃ | 1.33 | .82 | .96 | 1.25 |  
| CaO | 0.60 | 1.31 | .82 | .73 |  
| MgO | 0.12 | 0.19 | .71 | .62 |  
| Cu | — | — | — | — |  
| Ni | — | — | — | — |  
| TiO₂ | Tr. | Tr. | — | Tr. |  
| P₂O₅ | 0.33 | 0.21 | 0.18 | 0.21 |  
| S | 0.08 | 0.10 | 0.09 | 0.12 |  
| C | 0.33 | 0.18 | 0.26 | 0.31 |  
| MnO₂ | Tr. | Tr. | Tr. | Tr. |  
| Co | — | — | — | — |  
| Zn | — | — | — | — |  
| As | — | — | — | — |

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Source: [https://indike.org/pramana/ins.science.biswas-1996.v1.c19.s5.t3.6](https://indike.org/pramana/ins.science.biswas-1996.v1.c19.s5.t3.6) · Pramāṇa