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: F8 _database_code_amcsd 0005452 9.861 17.959 5.289 90 105.32 90 C2/m atom x y z occ Biso SiT1 .2807 .0852 .3023 .789 .52 AlT1 .2807 .0852 .3023 .211 .52 SiT2 .2908 .1730 .8127 .789 .55 AlT2 .2908 .1730 .8127 .211 .55 MgM1 0 .0890 .5 .92 .63 FeM1 0 .0890 .5 .06 .63 TiM2 0 .1762 0 .02 .57 CrM2 0 .1762 0 .02 .57 AlM2 0 .1762 0 .21 .57 FeM2 0 .1762 0 .11 .57 MgM2 0 .1762 0 .64 .57 AlM3 0 0 0 .21 .55 MgM3 0 0 0 .72 .55 FeM3 0 0 0 .07 .55 FeM4 0 .2799 .5 .03 .78 MgM4 0 .2799 .5 .01 .78 CaM4 0 .2799 .5 .46 .78 FeM4' 0 .2534 .5 .03 .73 MgM4' 0 .2534 .5 .01 .73 CaM4' 0 .2534 .5 .46 .73 NaA 0 .5 0 .140 3.64 KA 0 .5 0 .008 3.64 NaA(m) .0139 .5 .0586 .140 3.22 KA(m) .0139 .5 .0586 .008 3.22 NaA(2) 0 .4664 0 .140 1.74 KA(2) 0 .4664 0 .008 1.74 H .2030 0 .7277 6.24 O1 .1068 .0873 .2156 .89 O2 .1196 .1734 .7324 .74 Oh3 .1082 0 .7182 .86 O4 .3670 .2500 .7870 .95 O5 .3495 .1407 .1136 .96 O6 .3437 .1160 .6112 1.09 O7 .3398 0 .2730 1.22