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(Co.76Mg.25)Al2O4 |
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Bosi F, Halenius U, D'Ippolito V, Andreozzi G B |
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American Mineralogist 97 (2012) 1834-1840 |
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Blue spinel crystals in the MgAl2O4-CoAl2O4 series: Part II. |
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Cation ordering over short-range and long-range scales |
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Sample: CoAl67 |
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Locality: synthetic |
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_database_code_amcsd 0019582 |
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8.1010 8.1010 8.1010 90 90 90 *Fd3m |
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.125 .125 .125 |
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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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CoT .125 .125 .125 .67 .00543 .00543 .00543 0 0 0 |
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MgT .125 .125 .125 .17 .00543 .00543 .00543 0 0 0 |
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AlT .125 .125 .125 .16 .00543 .00543 .00543 0 0 0 |
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CoM .5 .5 .5 .045 .0045 .0045 .0045 -.00027 -.00027 -.00027 |
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MgM .5 .5 .5 .04 .0045 .0045 .0045 -.00027 -.00027 -.00027 |
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AlM .5 .5 .5 .92 .0045 .0045 .0045 -.00027 -.00027 -.00027 |
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O .26321 .26321 .26321 .0078 .0078 .0078 -.00003 -.00003 -.00003 |
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