Yakovenchukite-(Y) Krivovichev S V, Pakhomovsky Y A, Ivanyuk G Y, Mikhailova J A, Men'shikov Y P, Armbruster T, Selivanova E A, Meisser N American Mineralogist 92 (2007) 1525-1530 Yakovenchukite-(Y), K3NaCaY2(Si12O30)(H2O)4, a new mineral from the Khibiny massif, Kola Peninsula, Russia: a novel type of octahedral-tetrahedral open-framework structure Locality: Khibiny massif, Kola Peninsula, Russia _database_code_amcsd 0004453 14.972 14.137 14.594 90 90 90 Pcca atom x y z occ Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) K1 .5 .2677 .25 .88 .041 .0308 .026 .065 .000 .026 0 K2 .0896 .2619 .1022 .94 .0384 .0180 .037 .061 .0046 .0013 .0041 Na .25 .5 .0128 .042 .047 .053 .027 -.014 0 0 Ca1 .25 0 .0300 .0157 .0096 .020 .017 .0040 0 0 Ca2 .0392 .244 .006 .06 .013 Y1 0 .5 .5 .84 .0137 .0103 .0159 .0151 -.0002 .0008 .0006 Yb1 0 .5 .5 .16 .0137 .0103 .0159 .0151 -.0002 .0008 .0006 Y2 0 0 .5 .82 .0143 .0099 .0176 .0154 .0008 .0014 .0013 Yb2 0 0 .5 .18 .0143 .0099 .0176 .0154 .0008 .0014 .0013 Si1 .1252 .3588 .3440 .0149 .010 .011 .024 -.0004 -.0027 -.0027 Si2 .1215 .1434 .3510 .0161 .014 .019 .015 -.0007 .0012 -.0013 Si3 .1699 .6402 .3768 .0169 .0121 .019 .020 -.0023 .0013 -.0023 Si4 .1759 -.1359 .3717 .0141 .0120 .011 .020 .0003 -.0002 -.0021 Si5 .0972 -.0264 .2175 .0158 .0144 .017 .016 -.0007 .0003 .0015 Si6 .1452 .5182 .2019 .0207 .0159 .026 .020 .0008 .0001 -.0009 O1 0 -.0642 .25 .022 .013 .022 .030 0 -.005 0 O2 .1407 .6031 .2768 .025 .027 .025 .024 .000 -.004 -.007 O3 .1150 .0775 .2608 .019 .029 .015 .013 .005 -.005 .007 O4 .1142 .4183 .2503 .025 .019 .024 .031 -.003 -.008 .006 O5 .1667 -.1019 .2656 .017 .015 .026 .009 .003 .000 -.006 O6 .2233 .3810 .3887 .020 .016 .023 .020 -.004 .004 -.009 O7 .1234 .2500 .3074 .020 .019 .015 .025 -.005 .006 -.004 O8 .2185 .1219 .4007 .019 .005 .023 .030 -.003 -.003 .000 O9 .0445 .1289 .4250 .021 .016 .020 .027 -.005 .006 .004 O10 .0499 .3799 .4176 .020 .015 .030 .016 -.007 .002 -.003 O11 .1508 .7520 .3767 .022 .013 .019 .035 .003 .003 .004 O12 .0906 .5452 .1147 .028 .025 .039 .020 -.007 -.007 .002 O13 .1075 -.0264 .1103 .024 .031 .032 .010 .005 -.004 .005 O14 .1188 .5910 .4586 .023 .022 .022 .024 -.002 .003 .007 O15 .25 .5 .1732 .028 .021 .048 .017 -.002 0 0 O16 .1198 -.0744 .4401 .020 .015 .025 .018 .007 .002 -.005 Wat17 .4059 .2524 .0825 .057 .069 .038 .064 .008 .002 .009 Wat18 .2429 .1640 .1046 .041 .035 .059 .030 .020 -.006 .003