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Ludwigite |
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Brovkin A A, Rozhdestvenskaya I V, Rykova E A |
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Crystallography Reports 47 (2002) 412-414 |
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Cation distribution in the structure of titanium-containing ludwigite |
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Note: to be the mineral azoproite, Ti+Mg must be greater than Fe3+ in M4 site |
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Note: Uiso values have been divided by 100 |
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Locality: Tazheran massif |
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_database_code_amcsd 0018467 |
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9.260 12.294 3.0236 90 90 90 Pbam |
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atom x y z occ Uiso |
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MgM1 0 0 .5 .0062 |
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MgM2 .0012 .28057 .5 .0057 |
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Fe2+M3 .5 0 0 .324 .0041 |
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MgM3 .5 0 0 .676 .0041 |
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Fe3+M4 .23823 .11540 0 .47 .00676 |
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Ti4+M4 .23823 .11540 0 .21 .00676 |
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MgM4 .23823 .11540 0 .15 .00676 |
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AlM4 .23823 .11540 0 .10 .00676 |
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Fe2+M4 .23823 .11540 0 .07 .00676 |
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B .2746 .3602 0 .0059 |
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O1 .3499 .4571 0 .0065 |
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O2 .1095 .1429 .5 .0084 |
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O3 .1244 .3581 0 .0072 |
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O4 .3838 .0762 .5 .0095 |
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O5 .3497 .2624 0 .0069 |
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