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: F15 _database_code_amcsd 0005459 9.854 17.931 5.282 90 105.33 90 C2/m atom x y z occ Biso SiT1 .2808 .0854 .3031 .762 .43 AlT1 .2808 .0854 .3031 .238 .43 SiT2 .2911 .1734 .8139 .762 .46 AlT2 .2911 .1734 .8139 .238 .46 MgM1 0 .0894 .5 .92 .50 FeM1 0 .0894 .5 .08 .50 CrM2 0 .1762 0 .02 .47 AlM2 0 .1762 0 .30 .47 FeM2 0 .1762 0 .04 .47 MgM2 0 .1762 0 .64 .47 AlM3 0 0 0 .32 .46 MgM3 0 0 0 .61 .46 FeM3 0 0 0 .07 .46 FeM4 0 .2801 .5 .03 .61 MgM4 0 .2801 .5 .02 .61 CaM4 0 .2801 .5 .44 .61 NaM4 0 .2801 .5 .01 .61 FeM4' 0 .2592 .5 .03 .71 MgM4' 0 .2592 .5 .02 .71 CaM4' 0 .2592 .5 .44 .71 NaM4' 0 .2592 .5 .01 .71 NaA 0 .5 0 .182 6.39 KA 0 .5 0 .002 6.39 NaA(m) .0232 .5 .0501 .181 5.80 KA(m) .0232 .5 .0501 .002 5.80 NaA(2) 0 .4691 0 .182 1.32 KA(2) 0 .4691 0 .002 1.32 H .1893 0 .7677 1.67 O1 .1062 .0873 .2148 .89 O2 .1197 .1736 .7344 .67 Oh3 .1074 0 .7195 .82 O4 .3677 .2505 .7870 .88 O5 .3507 .1419 .1153 .86 O6 .3434 .1150 .6148 1.02 O7 .3412 0 .2686 1.04