Richterite Oberti R, Hawthorne F C, Ungaretti L, Cannillo E European Journal of Mineralogy 5 (1993) 43-51 The behaviour of Mn in amphiboles: Mn in richerite Sample: MR(4) _database_code_amcsd 0006467 9.966 18.066 5.279 90 104.40 90 C2/m atom x y z occ Biso NaA2/m 0 .5 0 .11 3.81 KA2/m 0 .5 0 .07 3.81 NaAm .0272 .5 .0763 .11 4.93 KAm .0272 .5 .0763 .07 4.93 NaA2 0 .4679 0 .11 1.86 KA2 0 .4679 0 .07 1.86 MgM1 0 .0888 .5 .93 .56 FeM1 0 .0888 .5 .07 .56 MgM2 0 .1806 0 .54 .64 AlM2 0 .1806 0 .03 .64 MnM2 0 .1806 0 .41 .64 FeM2 0 .1806 0 .02 .64 MgM3 0 0 0 .98 .54 FeM3 0 0 0 .02 .54 NaM4 0 .2768 .5 .225 .99 MgM4 0 .2768 .5 .0125 .99 CaM4 0 .2768 .5 .23 .99 MnM4 0 .2768 .5 .0325 .99 NaM4' 0 .2604 .5 .225 1.24 MgM4' 0 .2604 .5 .0125 1.24 CaM4' 0 .2604 .5 .23 1.24 MnM4' 0 .2604 .5 .0325 1.24 SiT1 .2774 .0845 .2950 .9925 .47 AlT1 .2774 .0845 .2950 .0075 .47 SiT2 .2860 .1707 .8001 .9925 .49 AlT2 .2860 .1707 .8001 .0075 .49 H .1881 0 .7640 .825 2.11 O1 .1117 .0854 .2181 .61 O2 .1195 .1697 .7235 .69 O3 .1066 0 .7147 .825 .76 F .1066 0 .7147 .175 .76 O4 .3621 .2471 .7927 .94 O5 .3445 .1301 .0898 .81 O6 .3416 .1163 .5889 .83 O7 .3358 0 .2911 .95