Hornblende Oberti R, Hawthorne F C, Ungaretti L, Cannillo E The Canadian Mineralogist 33 (1995) 867-878 [6]Al disorder in amphiboles from mantle peridotites Sample: F3 _database_code_amcsd 0005448 9.867 17.998 5.285 90 105.19 90 C2/m atom x y z occ Biso SiT1 .2805 .0854 .3024 .771 .42 AlT1 .2805 .0854 .3024 .229 .42 SiT2 .2911 .1731 .8134 .771 .46 AlT2 .2911 .1731 .8134 .229 .46 MgM1 0 .0894 .5 .84 .49 FeM1 0 .0894 .5 .16 .49 TiM2 0 .1764 0 .02 .47 AlM2 0 .1764 0 .27 .47 FeM2 0 .1764 0 .19 .47 MgM2 0 .1764 0 .52 .47 AlM3 0 0 0 .14 .47 MgM3 0 0 0 .67 .47 FeM3 0 0 0 .19 .47 FeM4 0 .2801 .5 .03 .69 MgM4 0 .2801 .5 .01 .69 CaM4 0 .2801 .5 .46 .69 FeM4' 0 .2585 .5 .04 .66 MgM4' 0 .2585 .5 .01 .66 CaM4' 0 .2585 .5 .45 .66 NaA 0 .5 0 .154 4.92 KA 0 .5 0 .001 4.92 NaA(m) .0336 .5 .0843 .155 5.33 KA(m) .0336 .5 .0843 .001 5.33 NaA(2) 0 .4675 0 .155 1.79 KA(2) 0 .4675 0 .001 1.79 H .1850 0 .7650 2.00 O1 .1065 .0883 .2152 .79 O2 .1199 .1741 .7341 .67 Oh3 .1086 0 .7163 .84 O4 .3682 .2501 .7882 .88 O5 .3503 .1408 .1130 .86 O6 .3436 .1162 .6109 .99 O7 .3400 0 .2731 1.07