Minerals and Metals in Ancient India v1.c22.s2.16

v1.c22.s2.16

| | Taxila | Rājghāṭ | Kopia |
| | 600-300 BC | 600-200 BC | 300 BC-AD 300 |
| SiO₂ | 53.8 - 71.0 | 64.7 - 70.1 | 62.2 - 70.3 |
| Na₂O | 12.9 - 23.5 | 5.3 - 17.5 | 19.3 - 21.7 |
| K₂O | 2.4 - 4.9 | 0.3 - 9.7 | — |
| CaO | 4.9 - 8.9 | 3.1 - 8.9 | 2.4 - 8.9 |
| MgO | 0.5 - 4.5 | 0.4 - 1.6 | 1.2 - 2.1 |
| Al₂O₃ | 1.5 - 5.7 | 2.3 - 9.9 | 4.9 - 8.5 |
| Fe₂O₃ | 0.8 - 8.5 | 1.3 - 7.2 | 0.2 - 3.0 |
| MnO | 0.01-0.17 | 0.02 | 0.03 - 0.1 |