Richterite Oberti R, Ungaretti L, Cannillo E, Hawthorne F C European Journal of Mineralogy 4 (1992) 425-439 The behaviour of Ti in amphiboles: I. Four- and six-coordinate Ti in richterite Sample: R(2) Potassium-richterite _database_code_amcsd 0006439 9.998 17.976 5.273 90 104.75 90 C2/m atom x y z occ Biso O1 .1097 .0866 .2178 .46 O2 .1182 .1702 .7261 .53 O3 .1054 0 .7143 .69 .59 F .1054 0 .7143 .31 .59 O4 .3620 .2481 .7980 .71 O5 .3436 .1302 .0948 .66 O6 .3399 .1172 .5929 .64 O7 .3319 0 .3008 .63 NaA 0 .5 0 .1035 1.29 KA 0 .5 0 .436 1.29 NaAm .0328 .5 .0764 .0517 .83 KAm .0328 .5 .0764 .218 .83 AlM1 0 .0892 .5 .0098 .47 TiM1 0 .0892 .5 .0012 .47 MgM1 0 .0892 .5 .9745 .47 MnM1 0 .0892 .5 .0145 .47 AlM2 0 .1795 0 .0098 .51 TiM2 0 .1795 0 .0012 .51 MgM2 0 .1795 0 .9745 .51 MnM2 0 .1795 0 .0145 .51 AlM3 0 0 0 .0098 .39 TiM3 0 0 0 .0012 .39 MgM3 0 0 0 .9745 .39 MnM3 0 0 0 .0145 .39 SrM4 0 .2776 .5 .0255 .86 CaM4 0 .2776 .5 .521 .86 NaM4 0 .2776 .5 .4535 .86 SiT1 .2749 .0853 .2987 .9939 .33 AlT1 .2749 .0853 .2987 .0061 .33 SiT2 .2847 .1720 .8042 .9939 .34 AlT2 .2847 .1720 .8042 .0061 .34 H .1904 0 .7509 .69 2.05