Fluoro-edenite Welch M D, Knight K S European Journal of Mineralogy 11 (1999) 321-331 A neutron powder diffraction study of cation ordering in high-temperature synthetic amphiboles _database_code_amcsd 0006770 9.8535 18.0154 5.2752 90 104.892 90 C2/m atom x y z occ Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) SiT1 .2810 .0844 .3010 .75 .0018 AlT1 .2810 .0844 .3010 .25 .0018 SiT2 .2888 .1717 .8083 .0027 MgM1 0 .0887 .5 .0037 MgM2 0 .1760 0 .0038 MgM3 0 0 0 .0067 CaM4 0 .2784 .5 .0122 NaA2/m 0 .5 0 .16 .190 .136 .237 0 .209 0 O1 .1108 .0848 .2194 .0041 O2 .1194 .1705 .7272 .0064 F3 .1030 0 .7142 .0073 O4 .3639 .2491 .7898 .0060 O5 .3488 .1358 .1040 .0083 O6 .3454 .1168 .6007 .0069 O7 .3422 0 .2823 .0095