Item | SiO2 | Al2O3 | CaO | Cr2O3 | Fe2O3 | K2O | MgO | MnO | Na2O | P2O5 |
% | % | % | % | % | % | % | % | % | % | |
Average | 23.42 | 22.64 | 9.70 | 0.01 | 6.08 | 0.32 | 0.19 | 0.20 | 0.18 | 19.00 |
Maximum | 96.04 | 43.2 | 36.63 | 0.07 | 71.10 | 4.26 | 0.70 | 5.51 | 0.68 | 32.94 |
Minimum | 1.88 | 0.51 | <0.01 | <0.001 | 0.26 | <0.01 | <0.01 | <0.001 | 0.02 | 0.13 |
Standard Deviation | 23.58 | 11.60 | 8.83 | 0.01 | 12.31 | 0.56 | 0.14 | 0.88 | 0.13 | 9.05 |
Correlation Coefficient | −0.82 | 0.66 | 0.54 | −0.14 | −0.49 | −0.27 | −0.02 | −0.38 | −0.12 | 1 |