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Nepheline |
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Angel R J, Gatta G C, Boffa Ballaran T, Carpenter M A |
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The Canadian Mineralogist 46 (2008) 1465-1476 |
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The mechanism of coupling in the modulated structure of nepheline |
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Locality: Snipe River, Tambani, Malawi |
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Note: natural sample |
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Note: T = 290 K |
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_database_code_amcsd 0006204 |
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9.9995 9.9995 8.3766 90 90 120 P6_3 |
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atom x y z occ Uiso |
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K 0 0 .0037 .57 .033 |
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Na1 0 0 .0037 .24 .033 |
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Na2 .5541 .9972 .5080 .025 |
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Al1 2/3 1/3 .7015 .48 .013 |
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Si1 2/3 1/3 .7015 .52 .013 |
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Al2 2/3 1/3 .3132 .48 .014 |
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Si2 2/3 1/3 .3132 .52 .014 |
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Al3 .9057 .6661 .8224 .48 .014 |
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Si3 .9057 .6661 .8224 .52 .014 |
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Al4 .9064 .6676 .1959 .48 .012 |
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Si4 .9064 .6676 .1959 .52 .012 |
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O1 .6620 .2891 .5013 1/3 .033 |
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O2 .9729 .6835 .0027 .034 |
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O3 .8265 .4775 .2514 .038 |
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O4 .8367 .4898 .7642 .034 |
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O5 .7737 .7147 .8241 .020 |
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O6 .7760 .7329 .2011 .023 |
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View JMOL 3-D Structure (permalink)
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