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Slawsonite |
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Benna P, Nestola F, Ballaran T B, Balic-Zunic T, Lundegaard L F, Bruno E |
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American Mineralogist 92 (2007) 1190-1199 |
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The high-pressure structural configurations of Ca0.2Sr0.8Al2Si2O8 feldspar: |
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The I-1-I2/c and I2/c-P2_1/c phase transitions |
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Sample: P = 6.2 GPa |
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Locality: synthetic |
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_database_code_amcsd 0004410 |
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8.128 12.671 13.866 90 114.98 90 I2/c |
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atom x y z occ Uiso |
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Ca .2654 .0009 .0685 .2 .043 |
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Sr .2654 .0009 .0685 .8 .043 |
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Si10 .9955 .1773 .1070 .044 |
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Al1z .9933 .1755 .6176 .043 |
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Al20 .6844 .1243 .1707 .041 |
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Si2z .6748 .1131 .6720 .044 |
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OA1 .0027 .1293 .9981 .034 |
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OA2 .5812 .0033 .1482 .055 |
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OB0 .8186 .1180 .1045 .060 |
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OBz .7940 .1171 .6048 .054 |
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OC0 .9884 .3034 .1141 .054 |
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OCz .9955 .3115 .6267 .055 |
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OD0 .1832 .1249 .1943 .054 |
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ODz .1915 .1171 .7020 .056 |
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View JMOL 3-D Structure (permalink)
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