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: F13 _database_code_amcsd 0005457 9.886 18.009 5.291 90 105.24 90 C2/m atom x y z occ Biso SiT1 .2798 .0851 .3020 .826 .38 AlT1 .2798 .0851 .3020 .174 .38 SiT2 .2898 .1726 .8110 .826 .41 AlT2 .2898 .1726 .8110 .174 .41 MgM1 0 .0888 .5 .92 .45 FeM1 0 .0888 .5 .08 .45 TiM2 0 .1762 0 .03 .44 CrM2 0 .1762 0 .11 .44 AlM2 0 .1762 0 .10 .44 FeM2 0 .1762 0 .02 .44 MgM2 0 .1762 0 .74 .44 AlM3 0 0 0 .11 .44 MgM3 0 0 0 .82 .44 FeM3 0 0 0 .07 .44 FeM4 0 .2795 .5 .02 .67 CaM4 0 .2795 .5 .48 .67 FeM4' 0 .2559 .5 .02 .59 CaM4' 0 .2559 .5 .48 .59 NaA 0 .5 0 .107 1.05 KA 0 .5 0 .034 1.05 NaA(m) .0286 .5 .0657 .106 3.39 KA(m) .0286 .5 .0657 .034 3.39 NaA(2) 0 .4682 0 .107 2.38 KA(2) 0 .4682 0 .034 2.38 H .1976 0 .7615 2.65 O1 .1078 .0872 .2173 .65 O2 .1194 .1728 .7303 .58 Oh3 .1084 0 .7164 .68 O4 .3665 .2494 .7891 .79 O5 .3484 .1389 .1102 .84 O6 .3436 .1165 .6062 .88 O7 .3385 0 .2805 1.09