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(2) _database_code_amcsd 0006465 9.892 18.027 5.278 90 104.09 90 C2/m atom x y z occ Biso NaA2/m 0 .5 0 .148 3.96 KA2/m 0 .5 0 .04 3.96 NaAm .0378 .5 .0885 .148 3.60 KAm .0378 .5 .0885 .04 3.60 NaA2 0 .4654 0 .148 3.45 KA2 0 .4654 0 .04 3.45 MgM1 0 .0887 .5 .96 .54 FeM1 0 .0887 .5 .04 .54 MgM2 0 .1800 0 .68 .61 AlM2 0 .1800 0 .02 .61 MnM2 0 .1800 0 .23 .61 FeM2 0 .1800 0 .07 .61 MgM3 0 0 0 .98 .50 FeM3 0 0 0 .02 .50 NaM4 0 .2752 .5 .22 1.15 MgM4 0 .2752 .5 .005 1.15 CaM4 0 .2752 .5 .1875 1.15 MnM4 0 .2752 .5 .0875 1.15 NaM4' 0 .2578 .5 .22 .84 MgM4' 0 .2578 .5 .005 .84 CaM4' 0 .2578 .5 .1875 .84 MnM4' 0 .2578 .5 .0875 .84 SiT1 .2789 .0847 .2932 .9875 .43 AlT1 .2789 .0847 .2932 .0125 .43 SiT2 .2876 .1709 .7991 .9875 .48 AlT2 .2876 .1709 .7991 .0125 .48 H .1904 0 .7461 .83 .64 O1 .1119 .0858 .2168 .55 O2 .1198 .1701 .7244 .64 O3 .1074 0 .7135 .83 .69 F .1074 0 .7135 .17 .69 O4 .3638 .2477 .7903 1.00 O5 .3464 .1307 .0885 .87 O6 .3426 .1162 .5877 .88 O7 .3378 0 .2858 .97