Major constituent | Wt% | trace constituent | Wt% |
SiO2 | 74.00 | RE2O3 | 1.90 |
TiO2 | 1.23 | Nb2O5 | 1.25 |
Al2O3 | 5.00 | Ta2O5 | 0.13 |
Fe2O3 | 5.10 | ZrO2 | 1.12 |
CaO | 1.64 | U3O8 | 0.01 |
MgO | 0.80 | ThO2 | 0.04 |
MnO | 0.05 |
|
|
Na2O | 2.03 |
|
|
K2O | 4.90 |
|
|
P2O5 | 0.06 |
|
|
LOI* | 0.74 |
|
|
Total | 100.0 |