Perlite SiO2 % 74.34 TiO2 % 0.185 Al2O3 % 12.40 Fe2O3 % 1.22 Mn2O3 % 0.075 MgO % 0.518 CaO % 1.15 Na2O % 3.86 K2O % 3.43 P2O5 % 0.077 SO3 % 0 LOI % 2.61 Sum % 99.88 Ba ppm 571 Cr2O3 % 0.002 Ga ppm 11.6 Nb ppm 8.2 Ni ppm 12.6 Pb ppm 8.1 Rb ppm 103 SrO % 0.008 Th ppm 12.4 V ppm 24.9 Y ppm 19.8 ZnO % 0.004 Zr ppm 79.4 Metakaolin SiO2 % 60.42 TiO2 % 0.268 Al2O3 % 20.55 Fe2O3 % 0.485 Mn2O3 % 0.013 MgO % 1.19 CaO % 3.95 Na2O % 9.60 K2O % 1.83 P2O5 % 0.239 SO3 % 0 LOI % 1.03 Sum % 99.57 Ba ppm 1408 Cr2O3 % 0.022 Ga ppm 19.1 Nb ppm 4.4 Ni ppm 11.8 Pb ppm 1405 Rb ppm 65.8 SrO % 0.026 Th ppm 50.0 V ppm 33.8 Y ppm 6.9 ZnO % 0.022 Zr ppm 89.1 Diatomite SiO2 % 74.21 TiO2 % 0.900 Al2O3 % 9.78 Fe2O3 % 6.46 Mn2O3 % 0.032 MgO % 1.68 CaO % 0.829 Na2O % 0.553 K2O % 1.49 P2O5 % 0.239 LOI % 3.16 SO3 % 0.5 Sum % 99.82 Ba ppm 230 Cr2O3 % 0.013 Ga ppm 20.8 Nb ppm 31.0 Ni ppm 25.7 Pb ppm 17.1 Rb ppm 67.4 SrO % 0.016 Th ppm 10.1 V ppm 262 Y ppm 11.9 ZnO % 0.006 Zr ppm 204 Calcined clay SiO2 % 52.06 TiO2 % 0.989 Al2O3 % 21.91 Fe2O3 % 7.96 Mn2O3 % 0.160 MgO % 2.80 CaO % 5.71 Na2O % 0.468 K2O % 2.99 P2O5 % 0.348 LOI % 2.85 SO3 % 1.6 Sum % 99.83 Ba ppm 346 Cr2O3 % 0.019 Ga ppm 27.4 Nb ppm 17.8 Ni ppm 95.8 Pb ppm 16.5 Rb ppm 124 SrO % 0.026 Th ppm 12.7 V ppm 187 Y ppm 26.0 ZnO % 0.014 Zr ppm 175 Calcium aluminate cement SiO2 % 0.392 TiO2 % 0.024 Al2O3 % 63.67 Fe2O3 % 0.162 Mn2O3 % 0.003 MgO % 0.208 CaO % 34.27 Na2O % 0.000 K2O % 0.019 P2O5 % 0.075 LOI % 1.13 SO3 % 0 Sum % 99.95 Ba ppm 39.2 Cr2O3 % 0.004 Ga ppm 34.6 Nb ppm 1.4 Ni ppm < 0,5 Pb ppm < 1,0 Rb ppm 1.4 SrO % 0.013 Th ppm < 1,0 V ppm 26.5 Y ppm < 0,8 ZnO % 0.002 Zr ppm 27.1