Table 2 Comparison of select site sample compositions (wt%)
Component | MJS1 | BB1b (Na/Si-enriched) | BB1b (Mg/Fe-enriched) | Dobkowice | Replica medieval glass (Hangleton) | Timna tuyère | Site 28 (representative of Timna samples A-G) | Site 201 (Timna sample H) | Site 34 (Timna samples I–K) |
|---|---|---|---|---|---|---|---|---|---|
Location | Newberry | Broborg | Dobkowice | Ballidon92 | Timna | ||||
SiO2 | 70.14 | 64.26 | 53.86 | 75.08 | 46.5 | 60.88 | 55.89 | 77.76 | 56.45 |
Al2O3 | 13.93 | 15.82 | 12.77 | 0.36 | 3.5 | 19.60 | 0.89 | 8.78 | 1.03 |
Na2O | 4.76 | 3.70 | 2.78 | 17.76 | 0.7 | 0.57 | 0.44 | 0.47 | 0.55 |
Fe2O3 | 3.48 | 5.25 | 12.83 | 0.17 | 1.2 | 11.04 | 21.5 | 6.4 | 22.76 |
CaO | 0.88 | 3.33 | 8.73 | 7.29 | 21.6 | 2.21 | 5.07 | 1.19 | 1.53 |
K2O | 4.04 | 4.81 | 1.39 | 0.11 | 16.4 | 1.63 | 0.92 | 1.14 | 1.25 |
MgO | 0.22 | 1.97 | 6.68 | 0.36 | 5.4 | 0.70 | 0.79 | 0.26 | 0.38 |
MnO | 0 | 0.10 | 0.43 | 0 | 0 | 0.02 | 1.71 | 0.01 | 4.73 |
P2O5 | 0 | 0.58 | 0.20 | 0.06 | 4.6 | 0.18 | 0.67 | 0.08 | 1.88 |
TiO2 | 0.22 | 1.04 | 0.89 | 0 | 0 | 0.91 | 0.2 | 1.78 | 0.31 |
ZrO2 | 0.08 | 0 | 0 | 0 | 0 | 0 | 0.06 | 0.04 | 0.11 |
CuO | 0 | 0 | 0 | 0 | 0 | 0.05 | 5.03 | 0.16 | 1.98 |
BaO | 0 | 0 | 0 | 0 | 0 | 0 | 0.09 | 0.01 | 0.33 |
Cr2O3 | 0 | 0 | 0 | 0 | 0 | 0 | 0.03 | 0.01 | 0.02 |
Cl | 0 | 0 | 0 | 1.01 | 0 | 0 | 0 | 0 | 0 |
Others | 0 | 0 | 0 | 0.32 | 0 | 0 | 6.71 | 1.91 | 6.69 |
Total | 97.74 | 100.87 | 100.38 | 102.53 | 99.9 | 97.786 | 100 | 100 | 100 |
Method | EPMA | Chemical digestion, ICP-OES, ICP-MS | |||||||
