MAJOR OXIDES (wt. %) | ||||||||
OXIDE | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
SiO2 | 50.69 | 51.20 | 49.31 | 49.92 | 53.17 | 50.40 | 51.18 | 50.36 |
TiO2 | 1.13 | 0.87 | 2.27 | 2.20 | 1.79 | 1.36 | 1.69 | 3.62 |
Al2O3 | 14.17 | 13.46 | 13.00 | 13.38 | 13.56 | 15.91 | 16.01 | 13.41 |
Fe2O3 | 14.51 | 14.38 | 17.50 | 17.16 | 16.53 | 10.01 | 9.40 | 13.63 |
MnO | 0.19 | 0.19 | 0.21 | 0.22 | 0.20 | 0.18 | 0.16 | 0.18 |
MgO | 6.17 | 7.50 | 4.81 | 5.10 | 2.18 | 8.96 | 6.90 | 5.52 |
CaO | 10.03 | 9.90 | 9.02 | 8.82 | 6.91 | 11.43 | 11.49 | 9.60 |
Na2O | 2.58 | 1.94 | 2.47 | 2.21 | 2.97 | 2.30 | 2.74 | 2.80 |
K2O | 0.53 | 0.88 | 0.87 | 0.86 | 1.35 | 0.09 | 0.43 | 0.77 |
P2O5 | 0.14 | 0.10 | 0.31 | 0.27 | 0.80 | 0.14 | 0.15 | 0.42 |
TRACE ELEMENTS (ppm) | ||||||||
Cr | 133 | 295 | 80 | 76 | 8 | 346 | 225 | 81 |
Ni | 101 | 120 | 68 | 69 | 8 | 177 | 132 | 78 |
Rb | 25 | 41 | 47 | 43 | 47 | 2.3 | 10.3 | 15.4 |
Ba | 166 | 154 | 286 | 264 | 490 | 20 | 86 | 191 |
Sr | 135 | 144 | 145 | 159 | 168 | 98 | 155 | 395 |
Nb | 5 | 4 | 14 | 11 | 27 | 2.1 | 8.6 | 21.5 |
Zr | 77 | 68 | 184 | 153 | 485 | 97 | 121 | 227 |
Y | 27 | 24 | 50 | 41 | 108 | 37 | 39 | 42S |
RARE EARTH ELEMENTS (ppm) | ||||||||
La | 6.86 | 7.69 | 20.16 | 17.46 | 47.90 | 2.95 | 6.92 | 24.00 |
Ce | 16.47 | 17.91 | 47.64 | 39.00 | 113.11 | 12.00 | 17.60 | 53.00 |
Pr | 2.10 | 2.17 | 6.03 | 4.96 | 14.22 | -- | -- | 6.00 |
Nd | 9.53 | 8.85 | 23.67 | 20.55 | 57.95 | 9.90 | 13.60 | 35.10 |
Sm | 2.67 | 2.37 | 6.68 | 5.33 | 14.90 | 3.91 | 4.64 | 8.90 |
Eu | 1.01 | 0.80 | 2.18 | 1.80 | 3.92 | 1.41 | 1.55 | 2.98 |
Gd | 3.70 | 3.26 | 8.50 | 6.81 | 18.30 | 6.40 | 6.00 | 9.10 |
Dy | 3.90 | 3.32 | 8.11 | 6.52 | 16.95 | 5.60 | -- | 7.58 |
Ho | 0.90 | 0.78 | 1.84 | 1.50 | 3.84 | -- | -- | 1.41 |
Er | 2.58 | 2.22 | 4.99 | 4.09 | 10.33 | -- | -- | 3.64 |
Yb | 2.61 | 2.30 | 4.88 | 4.06 | 10.03 | 3.61 | 3.46 | 3.04 |
Lu | 0.40 | 0.36 | 0.75 | 0.63 | 1.56 | 0.50 | 0.46 | 0.42 |