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Serendibite |
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Van Derveer D G, Swihart G H, Sen Gupta P K, Grew E S |
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American Mineralogist 78 (1993) 195-203 |
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Cation occupancies in serendibite: A crystal structure study |
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Sample from Johnsburg, New York |
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Displacement parameters obtained from ICSD |
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10.010 10.393 8.631 106.37 96.10 124.38 P-1 |
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atom x y z occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) |
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B1 .4651 .2357 .3304 .652 .0097 .0081 .0061 .0066 .0023 .0028 |
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Si1 .4651 .2357 .3304 .348 .0097 .0081 .0061 .0066 .0023 .0028 |
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Si2 .98393 .22828 .34086 .0069 .0070 .0062 .0042 .0018 .0029 |
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Al3 .78569 .34446 .23325 .0063 .0055 .0055 .0037 .0021 .0027 |
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B4 .2688 .3290 .2197 .980 .0058 .0065 .0076 .0027 .0020 .0038 |
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Si4 .2688 .3290 .2197 .020 .0058 .0065 .0076 .0027 .0020 .0038 |
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Si5 .64333 .94317 .44362 .0077 .0075 .0079 .0048 .0027 .0019 |
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Si6 .35610 .55441 .05422 .0065 .0060 .0056 .0040 .0022 .0022 |
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Al1 0 0 .5 .0063 .0058 .0050 .0041 .0018 .0021 |
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Al2 0 .5 0 .0059 .0054 .0054 .0035 .0021 .0019 |
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Al3 .31197 .85596 .17246 .0063 .0081 .0063 .0048 .0025 .0032 |
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Al4 .77752 .82192 .14551 .0079 .0088 .0083 .0055 .0033 .0041 |
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Mg5 .09481 .94392 .06251 .0042 .0061 .0055 .0037 .0028 .0042 |
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Mg6 .59383 .93901 .05623 .0044 .0066 .0076 .0037 .0027 .0044 |
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Al7 .99816 .74020 .25928 .0066 .0056 .0060 .0040 .0025 .0025 |
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Ca8 .21564 .62437 .39800 .775 .0100 .0097 .0085 .0067 .0040 .0045 |
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Na8 .21564 .62437 .39800 .225 .0100 .0097 .0085 .0067 .0040 .0045 |
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Ca9 .64732 .60051 .38263 .823 .0062 .0105 .0107 .0040 .0029 .0052 |
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Na9 .64732 .60051 .38263 .177 .0062 .0105 .0107 .0040 .0029 .0052 |
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O1 .3531 .0647 .1736 .0099 .0106 .0109 .0070 .0027 .0039 |
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O2 .8448 .0496 .1682 .0105 .0100 .0074 .0071 .0028 .0035 |
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O3 .5409 .9530 .2890 .0130 .0116 .0129 .0071 .0045 .0017 |
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O4 .0143 .9336 .2775 .0080 .0077 .0070 .0044 .0033 .0029 |
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O5 .2409 .8684 .3818 .0094 .0094 .0092 .0056 .0013 .0026 |
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O6 .7623 .8819 .3830 .0072 .0091 .0105 .0048 .0024 .0040 |
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O7 .4899 .2096 .4948 .0128 .0106 .0131 .0064 .0077 .0063 |
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O8 .9573 .7881 .4825 .0080 .0081 .0091 .0049 .0023 .0041 |
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O9 .9004 .3259 .3802 .0154 .0101 .0089 .0093 .0033 .0040 |
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O10 .3839 .3254 .3450 .0097 .0097 .0100 .0050 .0015 .0044 |
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O11 .6516 .1633 .0462 .0087 .0098 .0123 .0058 .0040 .0046 |
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O12 .1610 .1760 .0618 .0085 .0082 .0085 .0051 .0001 .0015 |
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O13 .5362 .7101 .0488 .0127 .0097 .0108 .0074 .0052 .0038 |
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O14 .0686 .7260 .0646 .0094 .0081 .0076 .0054 .0034 .0035 |
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O15 .2407 .6156 .1168 .0085 .0107 .0089 .0069 .0031 .0037 |
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O16 .7533 .6129 .1350 .0089 .0100 .0075 .0050 .0023 .0009 |
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O17 .3893 .4867 .1931 .0103 .0084 .0088 .0058 .0043 .0051 |
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O18 .9520 .5259 .2158 .0110 .0106 .0088 .0067 .0029 .0043 |
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O19 .1655 .3586 .3125 .0101 .0100 .0118 .0053 .0067 .0039 |
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O20 .6558 .3680 .3333 .0198 .0184 .0099 .0148 .0064 .0052 |
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