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Ewaldite |
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Donnay G, Preston H |
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Tschermaks Mineralogische und Petrographische Mitteilungen 15 (1971) 201-212 |
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Ewaldite, a new barium calcium carbonate II. Its crystal structure |
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Note: unlocated carbonate group |
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5.284 5.284 12.78 90 90 120 P6_3mc |
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atom x y z occ Biso B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) |
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Ba 1/3 2/3 0 .023877 .023877 .002526 .011939 0 0 |
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Ca 1/3 2/3 .305 .48 .024116 .024116 .003658 .012058 0 0 |
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Ce 1/3 2/3 .305 .20 .024116 .024116 .003658 .012058 0 0 |
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Na 1/3 2/3 .305 .15 .024116 .024116 .003658 .012058 0 0 |
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K 1/3 2/3 .305 .11 .024116 .024116 .003658 .012058 0 0 |
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Sr 1/3 2/3 .305 .03 .024116 .024116 .003658 .012058 0 0 |
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U 1/3 2/3 .305 .02 .024116 .024116 .003658 .012058 0 0 |
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C 0 0 .422 2.3 |
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O .137 -.137 .425 2.7 |
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Ewaldite |
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Voloshin A V, Subbotin V V, Yakovenchuk V N, Pakhomovsky Y A, |
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Men'shikov Y P, Nadezhina T N, Pushcharovsky D Y |
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Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva 1992 (1992) 56-66 |
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New data on the ewaldite |
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5.318 5.318 12.837 90 90 120 P6_3mc |
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atom x y z occ Biso B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) |
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Ba 1/3 2/3 0 .008250 .008250 .002124 .004125 0 0 |
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Ca 1/3 2/3 .3045 .007543 .007543 .001062 .003772 0 0 |
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C 0 0 .427 .007190 .007190 .002124 .003654 0 0 |
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O1 .139 -.139 .426 .007425 .007425 .005765 .009429 .000423 -.000423 |
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O2 .292 .081 .665 .19 4.2 |
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O3 .532 .062 .151 .12 2.6 |
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O4 .603 .212 .277 .24 2.0 |
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O5 .231 .466 .703 .07 4.9 |
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| Download AMC data (View Text File)
Download CIF data (View Text File)
Download diffraction data (View Text File)
View JMOL 3-D Structure
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