Pargasite 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: F14 _database_code_amcsd 0005458 9.855 17.927 5.283 90 105.44 90 C2/m atom x y z occ Biso SiT1 .2808 .0854 .3033 .759 .46 AlT1 .2808 .0854 .3033 .241 .46 SiT2 .2910 .1734 .8141 .759 .49 AlT2 .2910 .1734 .8141 .241 .49 MgM1 0 .0894 .5 .92 .51 FeM1 0 .0894 .5 .08 .51 CrM2 0 .1761 0 .01 .50 AlM2 0 .1761 0 .32 .50 FeM2 0 .1761 0 .06 .50 MgM2 0 .1761 0 .61 .50 AlM3 0 0 0 .27 .48 MgM3 0 0 0 .66 .48 FeM3 0 0 0 .07 .48 FeM4 0 .2796 .5 .03 .73 MgM4 0 .2796 .5 .02 .73 CaM4 0 .2796 .5 .45 .73 FeM4' 0 .2544 .5 .03 .89 MgM4' 0 .2544 .5 .02 .89 CaM4' 0 .2544 .5 .45 .89 NaA 0 .5 0 .187 1.86 KA 0 .5 0 .001 1.86 NaA(m) .0264 .5 .0833 .187 2.93 KA(m) .0264 .5 .0833 .002 2.93 NaA(2) 0 .4678 0 .187 1.25 KA(2) 0 .4678 0 .001 1.25 H .1835 0 .7725 2.05 O1 .1059 .0874 .2145 .91 O2 .1197 .1736 .7345 .68 Oh3 .1073 0 .7188 .86 O4 .3680 .2505 .7868 .94 O5 .3507 .1419 .1153 .86 O6 .3431 .1151 .6149 1.04 O7 .3412 0 .2692 1.05