Table 8 The mean (or median) of each chemical composition for different glass types
From: Ancient chinese glass heritage classification based on compositional data and machine learning
\(i\) | High-potassium | Lead-barium | |||
|---|---|---|---|---|---|
\(T1\) | \(T2\) | \(T3\) | \(T4\) | \(T5\) | |
SiO2 | 6.59 | 9.09 | 6.26 | 5.25 | 4.10 |
Na2O | −4.22 | −4.67 | −2.40 | −5.44 | −6.66 |
K2O | 4.64 | 3.71 | −1.81 | −4.27 | −3.90 |
CaO | 4.09 | 4.24 | 2.00 | 2.83 | 2.73 |
MgO | 2.04 | −1.77 | −0.97 | −1.47 | −3.56 |
Al2O3 | 4.28 | 5.09 | 3.62 | 2.72 | 2.33 |
Fe2O3 | 2.88 | 3.19 | −2.89 | −0.92 | −6.66 |
CuO | 3.02 | 4.93 | 1.83 | 2.07 | 3.37 |
PbO | −1.85 | −4.67 | 5.36 | 5.64 | 5.70 |
BaO | −3.53 | −4.67 | 4.28 | 4.19 | 5.20 |
P2O5 | 2.64 | 2.98 | −0.58 | 3.31 | 4.25 |
SrO | −3.44 | −4.67 | −0.97 | 0.72 | 1.59 |
SnO2 | −5.93 | −4.67 | −5.87 | −6.30 | −6.66 |
SO2 | −4.69 | −4.67 | −6.48 | −6.21 | 1.31 |
