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Eakerite |
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Kossiakoff A A, Leavens P B |
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American Mineralogist 61 (1976) 956-962 |
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The crystal structure of eakerite, a calcium-tin silicate |
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Note: z-coordinate of Si2 altered |
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_database_code_amcsd 0000529 |
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15.892 7.721 7.438 90 101.34 90 P2_1/a |
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atom x y z U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) |
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Sn 0 0 0 .0078 .0082 .0089 .0004 .0012 .0027 |
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Ca .3005 .3111 .0021 .0092 .0109 .0100 -.0005 .0023 -.0005 |
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Al .2708 .0220 -.3172 .0055 .0059 .0065 .0001 .0014 .0002 |
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Si1 .4554 .1697 .7132 .0043 .0060 .0062 -.0001 .0018 -.0007 |
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Si2 .1661 .1445 .3091 .0054 .0063 .0055 .0004 .0006 .0001 |
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Si3 .4932 .2181 .3349 .0037 .0071 .0051 .0002 .0011 .0007 |
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O1 .0197 .1993 -.1614 .0096 .0140 .0134 .0021 .0026 .0035 |
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O2 .5051 -.0164 -.2694 .0153 .0039 .0237 .0025 .0035 -.0007 |
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O3 .2143 .3083 .2372 .0111 .0135 .0101 -.0011 .0032 -.0032 |
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O4 .1225 .0234 .1411 .0156 .0096 .0099 .0014 .0024 -.0027 |
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O5 .3625 .1448 -.2316 .0082 .0143 .0109 -.0015 .0028 -.0024 |
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O6 .4470 .3340 .1645 .0086 .0104 .0129 .0002 -.0014 .0005 |
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O7 .2362 .0349 .4488 .0092 .0131 .0133 .0015 .0014 .0001 |
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Wat8 .3193 .0030 .1531 .0154 .0179 .0166 .0010 -.0011 -.0012 |
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OH9 .2017 .1031 -.1811 .0097 .0154 .0122 .0026 .0021 .0011 |
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O10 .4397 .2281 .4977 .0102 .0191 .0091 .0001 .0028 .0001 |
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O11 .0922 .2216 .4124 .0110 .0153 .0124 .0036 .0029 -.0008 |
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