Ferro-actinolite Evans B W, Yang H American Mineralogist 83 (1998) 458-475 Fe-Mg order-disorder in tremolite-actinolite-ferro-actinolite at ambient and high temperature Sample: NMNH 168215, from Goose Creek Quarry, Leesburg, Virginia, in an alteration of hornblende _database_code_amcsd 0001999 9.977 18.287 5.308 90 104.81 90 C2/m atom x y z occ B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) Fe1 0 .0891 .5 .841 .0021 .0004 .0025 0 .0012 0 Mn1 0 .0891 .5 .026 .0021 .0004 .0025 0 .0012 0 Mg1 0 .0891 .5 .150 .0021 .0004 .0025 0 .0012 0 Fe2 0 .1791 0 .754 .0018 .0004 .0032 0 .0011 0 Mn2 0 .1791 0 .069 .0018 .0004 .0032 0 .0011 0 Mg2 0 .1791 0 .176 .0018 .0004 .0032 0 .0011 0 Ti2 0 .1791 0 .001 .0018 .0004 .0032 0 .0011 0 Fe3 0 0 0 .772 .0019 .0003 .0027 0 .0006 0 Mg3 0 0 0 .228 .0019 .0003 .0027 0 .0006 0 Fe4 0 .2779 .5 .009 .0028 .0005 .0078 0 .0032 0 Mn4 0 .2779 .5 .003 .0028 .0005 .0078 0 .0032 0 Ca4 0 .2779 .5 .985 .0028 .0005 .0078 0 .0032 0 Na4 0 .2779 .5 .003 .0028 .0005 .0078 0 .0032 0 Si1 .2787 .0836 .2926 .995 .0015 .0003 .0016 -.0001 .0009 .0000 Al1 .2787 .0836 .2926 .005 .0015 .0003 .0016 -.0001 .0009 .0000 Si2 .2886 .1699 .8004 .0014 .0004 .0013 -.0001 .0006 .0000 NaA(m) .044 .5 .102 .011 KA(m) .044 .5 .102 .022 H .186 0 .756 .940 O1 .1130 .0873 .2132 .0013 .0005 .0034 -.0001 .0011 .0000 O2 .1218 .1736 .7205 .0015 .0006 .0032 .0001 .0004 .0002 O3 .1105 0 .7134 .0016 .0007 .0071 0 .0005 0 O4 .3669 .2447 .7921 .0029 .0005 .0048 -.0004 .0027 -.0004 O5 .3439 .1320 .0940 .0018 .0007 .0036 -.0001 .0009 .0006 O6 .3424 .1187 .5833 .0022 .0007 .0012 .0000 .0009 -.0008 O7 .3328 0 .2938 .0022 .0003 .0070 0 .0009 0