Richterite Gunter M E, Dyar M D, Twamley B, Foit F F, Cornelius S American Mineralogist 88 (2003) 1970-1978 Composition, Fe3+/Sum(Fe), and crystal structure of non-asbestiform and asbestiform amphiboles from Libby, Montana, U.S.A. _database_code_amcsd 0003186 9.8787 18.024 5.2875 90 104.377 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) SiT(1) .2791 .0848 .2960 .995 .011 .015 .011 .008 .000 .005 -.001 AlT(1) .2791 .0848 .2960 .005 .011 .015 .011 .008 .000 .005 -.001 SiT(2) .2872 .1714 .8031 .995 .011 .015 .012 .007 -.001 .004 .000 AlT(2) .2872 .1714 .8031 .005 .011 .015 .012 .007 -.001 .004 .000 MgM(1) 0 .0886 .5 .99 .009 .013 .009 .005 0 .003 0 AlM(1) 0 .0886 .5 .01 .009 .013 .009 .005 0 .003 0 MgM(2) 0 .1796 0 .82 .010 .012 .011 .007 0 .004 0 FeM(2) 0 .1796 0 .18 .010 .012 .011 .007 0 .004 0 MgM(3) 0 0 0 .84 .020 .026 .020 .016 0 .007 0 FeM(3) 0 0 0 .16 .020 .026 .020 .016 0 .007 0 MnM(4) 0 .2772 .5 .02 .018 .024 .016 .018 0 .012 0 CaM(4) 0 .2772 .5 .56 .018 .024 .016 .018 0 .012 0 NaM(4) 0 .2772 .5 .42 .018 .024 .016 .018 0 .012 0 NaA 0 .5 0 .28 .105 .127 .058 .188 0 .147 0 KA 0 .5 0 .20 .105 .127 .058 .188 0 .147 0 O(1) .1113 .0865 .2166 .013 .017 .013 .008 -.001 .004 -.001 O(2) .1186 .1702 .7269 .014 .017 .015 .011 -.001 .005 -.001 O(3) .1081 0 .7138 .014 .018 .016 .010 0 .006 0 O(4) .3634 .2487 .7956 .015 .020 .015 .009 -.004 .005 -.001 O(5) .3459 .1315 .0922 .015 .018 .018 .010 .000 .005 .004 O(6) .3419 .1182 .5877 .014 .017 .015 .011 -.001 .004 -.002 O(7) .3364 0 .2935 .016 .013 .016 .016 0 .004 0 H .2148 0 .7750 .030