Tephroite
Redfern S A T, Knight K S, Henderson C M B, Wood B J
Mineralogical Magazine 62 (1998) 607-615
Fe-Mn cation ordering in fayalite-tephroite (FexMn1-x)2SiO4 olivines:
A neutron diffraction study
Locality: synthetic
_database_code_amcsd 0019696
4.87890 10.60587 6.20468 90 90 90 Pbnm
atom     x     y     z  occ Biso
MnM1     0     0     0 .546  .36
FeM1     0     0     0 .454  .36
MnM2 .9954 .2793   .25 .854  .54
FeM2 .9954 .2793   .25 .146  .54
Si   .4285 .0960   .25       .39
O1   .7606 .0926   .25       .68
O2   .2126 .4536   .25       .62
O3   .2871 .1637 .0395       .58