Table 3 Calculated and measured38,39,40 lattice parameters of FeO, TiO2, and Na2O containing crystal phases.
Crystal | a (Å) | b (Å) | c (Å) | α (degree) | β (degree) | γ (degree) | |
|---|---|---|---|---|---|---|---|
Rutile (TiO2) | Measured38 | 4.5937 | 4.5937 | 2.9587 | 90.0 | 90.0 | 90.0 |
Calculated | 4.6651 | 4.6651 | 3.0047 | 90.0 | 90.0 | 90.0 | |
Ilmenite (FeTiO3) | Measured39 | 5.09 | 5.09 | 14.09 | 90.0 | 90.0 | 120.0 |
Calculated | 5.25 | 5.25 | 14.52 | 90.0 | 90.0 | 120.0 | |
Freudenbergite (Na(Ti3Fe)O8) | Measured40 | 12.27 | 3.82 | 6.48 | 90.0 | 107.16 | 90.0 |
Calculated | 12.71 | 3.96 | 6.72 | 90.0 | 107.16 | 90.0 |