Mineral Structure and Property Data
The crystal structure of ilmenite.
Ilmenite Pyrophanite FeTiO3 MnTiO3 |
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End-Member Ilmenite Pyrophanite MgSiO3 C.N. 6 6 6 Occupant Fe Mn Mg Point Sym. 3 3 3 Wyckoff Not. 6c 6c 6c Frac.Coord. x 0 0 0 y 0 0 0 z .35537 .3570 .3597 Distances 1(3) 2.201 2.230 2.163 2(3) 2.078 2.024 1.990 Mean 2.081 2.127 2.076 sigma .068 .113 .095 Poly.Vol. 12.562 12.336 11.238 Q.E. 1.0271 1.0289 1.0429 Ang. Var. 91.8 91.8 143.4 Site Energy -1179. -1220. -1183. |
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End-Member Ilmenite Pyrophanite MgSiO3 C.N. 6 6 6 Occupant Ti Ti Si Point Sym. 3 3 3 Wyckoff Not. 6c 6c 6c Frac.Coord. x 0 0 0 y 0 0 0 z .14640 .1430 .15768 Distances 1(3) 2.089 2.190 1.830 2(3) 1.874 1.912 1.768 Mean 1.982 2.051 1.799 sigma .117 .152 .034 Poly.Vol. 10.001 11.067 7.592 Q.E. 1.0277 1.0310 1.0152 Ang. Var. 86.0 91.4 52.8 Site Energy -3959. -3809. -4352. |
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