Stornesite-(Y) Grew E S, Armbruster T, Medenbach O, Yates M G, Carson C J American Mineralogist 91 (2006) 1412-1424 Stornesite-(Y), (Y, Ca)Vacancy2Na6(Ca,Na)8(Mg,Fe)43(PO4)36, the first terrestrial Mg-dominant member of the fillowite group, from granulite-facies paragneiss in the Larsemann Hills, Prydz Bay, East Antarctica Locality: Larsemann Hills, Prydz Bay, East Antarctica Note: Isostructural with chladniite _database_code_amcsd 0004225 14.9628 14.9628 42.756 90 90 120 R-3 atom x y z occ Biso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) Y2 0 0 0 .677 .65 .0082 .0082 .008 .0041 0 0 CaY2 0 0 0 .263 .65 .0082 .0082 .008 .0041 0 0 YbY2 0 0 0 .060 .65 .0082 .0082 .008 .0041 0 0 NaX 0 0 .176 .063 .8 Na1 -.4108 -.0941 .16822 2.41 .047 .041 .022 .037 .005 .008 Ca1 .0263 -.2680 .00022 .581 1.32 .010 .023 .014 .006 -.0006 .0018 NaCa1 .0263 -.2680 .00022 .419 1.32 .010 .023 .014 .006 -.0006 .0018 Ca2 2/3 1/3 .08913 .679 1.34 .016 .016 .019 .0079 0 0 NaCa2 2/3 1/3 .08913 .321 1.34 .016 .016 .019 .0079 0 0 Mg1 0 0 .1057 .973 1.0 Fe1 0 0 .1057 .027 1.0 Mg2 2/3 1/3 .0083 .967 .8 Fe2 2/3 1/3 .0083 .033 .8 Mg3 1/3 2/3 .0630 1.31 Mg4 -.5393 -.1101 .03880 .545 1.13 Fe4 -.5393 -.1101 .03880 .455 1.13 Mg5 -.6800 -.0027 .08198 .888 .80 Fe5 -.6800 -.0027 .08198 .112 .80 Mg6 -.1089 .1116 .13588 .669 1.29 Fe6 -.1089 .1116 .13588 .331 1.29 Mg7 -.2530 .1758 .05190 .720 1.06 Fe7 -.2530 .1758 .05190 .280 1.06 Mg8 -.3293 -.0677 .08584 .626 .81 Fe8 -.3293 -.0677 .08584 .374 .81 Mg9 -.4236 .0810 .12567 .792 1.48 Fe9 -.4236 .0810 .12567 .208 1.48 Fe10 0 0 .5 .510 .5 Mg10 0 0 .5 .490 .5 P1 .5329 .1162 .03848 .79 P2 .4460 .2070 .12282 .92 P3 .1971 .1165 .05547 .92 P4 .1230 .2429 .13363 .87 P5 .1898 .4348 .02793 .69 P6 .1276 .5694 .11069 .81 O1 .5574 .0350 .0509 1.4 .024 .013 .019 .012 -.004 -.001 O2 .6390 .2183 .0393 1.10 .012 .013 .015 .005 .002 .003 O3 .4558 .1289 .0590 1.13 .012 .015 .015 .006 .005 .002 O4 .4902 .0933 .0051 1.2 .018 .017 .010 .008 .000 .000 O5 .5371 .1890 .1241 1.5 .014 .019 .027 .011 -.003 .000 O6 .3432 .1091 .1146 .91 .008 .013 .010 .002 .000 -.003 O7 .4306 .2511 .1528 2.3 .039 .042 .023 .032 -.011 -.021 O8 .4721 .2932 .0980 1.5 .018 .014 .022 .006 -.006 -.001 O9 .2471 .0502 .0504 1.17 .016 .016 .017 .011 .002 .002 O10 .1351 .0879 .0856 2.3 .025 .020 .034 .006 .014 -.004 O11 .1373 .1158 .0265 2.3 .029 .029 .035 .019 -.020 -.012 O12 .2867 .2323 .0593 1.1 .009 .011 .020 .004 .002 -.002 O13 .2265 .2435 .1312 1.3 .014 .013 .023 .008 .000 .002 O14 .0346 .1309 .1347 1.12 .013 .013 .015 .005 .005 -.001 O15 .1187 .2991 .1038 1.20 .013 .016 .015 .006 .001 .002 O16 .1252 .3032 .1627 1.2 .016 .015 .013 .007 .001 -.001 O17 .2566 .3992 .0451 1.11 .014 .018 .013 .011 -.001 .004 O18 .1619 .3825 -.0043 .99 .011 .013 .011 .005 -.001 -.002 O19 .0893 .4095 .0448 .94 .011 .014 .012 .007 .002 .002 O20 .2531 .5539 .0254 1.1 .019 .012 .010 .007 .002 .003 O21 .0440 .4540 .1101 1.07 .013 .009 .014 .002 .001 -.002 O22 .1909 .6039 .0801 .91 .014 .015 .008 .010 .001 .000 O23 .1953 .5938 .1393 1.4 .015 .023 .013 .007 -.001 .003 O24 .0631 .6257 .1128 1.1 .018 .015 .013 .011 .003 .003