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Yoderite |
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Higgins J B, Ribbe P H, Nakajima Y |
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American Mineralogist 67 (1982) 76-84 |
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An ordering model for the commensurate antiphase structure of yoderite |
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Ordered, T = 20 deg C |
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Note: the sample is from Mautia Hill, Tanzania |
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_database_code_amcsd 0000855 |
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8.022 5.816 7.250 90 104.9 90 P2_1/m |
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atom x y z occ Biso |
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Si1 .0637 .25 .7984 0.46 |
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Si2 .3396 .75 .8024 0.61 |
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Al1 .2952 .0051 .1776 .75 0.56 |
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Mg1 .2952 .0051 .1776 .25 0.56 |
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Al2 .3888 .25 .6301 .50 0.72 |
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Mg2 .3888 .25 .6301 .50 0.72 |
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Al3 .0557 .25 .3539 .84 0.75 |
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Fe .0557 .25 .3539 .16 0.75 |
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O1 .0573 .9801 .2147 0.69 |
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O2 .4525 .9760 .7812 1.33 |
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O3 .1478 .25 .6145 0.91 |
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O4 .2206 .25 .9928 0.72 |
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O5 .2979 .25 .3615 0.93 |
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O6 .1652 .75 .6322 0.81 |
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O7 .2830 .75 .0045 1.06 |
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O8 .3597 .75 .3643 1.16 |
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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 (permalink) |
| |
|
Yoderite |
|
Higgins J B, Ribbe P H, Nakajima Y |
|
American Mineralogist 67 (1982) 76-84 |
|
An ordering model for the commensurate antiphase structure of yoderite |
|
Disordered after heating to 800 C, at T = 20 C |
|
Note: the sample is from Mautia Hill, Tanzania |
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_database_code_amcsd 0000856 |
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8.027 5.805 7.252 90 104.9 90 P2_1/m |
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atom x y z occ Biso |
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Si1 .0634 .25 .7987 0.39 |
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Si2 .3393 .75 .8014 0.56 |
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Al1 .2948 .0049 .1780 .75 0.58 |
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Mg1 .2948 .0049 .1780 .25 0.58 |
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Al2 .3889 .25 .6299 .50 0.59 |
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Mg2 .3889 .25 .6299 .50 0.59 |
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Al3 .0559 .25 .3543 .84 0.47 |
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Fe .0559 .25 .3543 .16 0.47 |
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O1 .0562 .9804 .2156 0.60 |
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O2 .4532 .9764 .7785 1.14 |
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O3 .1489 .25 .6166 0.80 |
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O4 .2207 .25 .9930 0.74 |
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O5 .2995 .25 .3622 0.78 |
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O6 .1645 .75 .6299 0.72 |
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O7 .2842 .75 .0040 0.93 |
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O8 .3623 .75 .3631 1.04 |
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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 (permalink) |
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Yoderite |
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Fleet S G, Megaw H D |
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Acta Crystallographica 15 (1962) 721-728 |
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The crystal structure of yoderite |
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Locality: Mautia Hill, Tanzania |
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_database_code_amcsd 0009274 |
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8.035 5.805 7.346 90 105.63 90 P2_1/m |
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atom x y z occ Biso |
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MgA1 .2951 .0054 .1779 .25 .21 |
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CaA1 .2951 .0054 .1779 .03 .21 |
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FeA1 .2951 .0054 .1779 .06 .21 |
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AlA1 .2951 .0054 .1779 .66 .21 |
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MgA2 .3894 .25 .6297 .25 .21 |
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CaA2 .3894 .25 .6297 .03 .21 |
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FeA2 .3894 .25 .6297 .06 .21 |
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AlA2 .3894 .25 .6297 .66 .21 |
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MgA3 .0554 .25 .3547 .25 .21 |
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CaA3 .0554 .25 .3547 .03 .21 |
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FeA3 .0554 .25 .3547 .06 .21 |
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AlA3 .0554 .25 .3547 .66 .21 |
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Si1 .0624 .25 .7979 .23 |
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Si2 .3397 .75 .8026 .23 |
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O1 .0571 .9817 .2162 .84 |
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O2 .4545 .9770 .7818 .84 |
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O3 .1455 .25 .6161 .84 |
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O4 .2206 .25 .9907 .84 |
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O5 .2988 .25 .3607 .84 |
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O6 .1686 .75 .6338 .84 |
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O7 .2818 .75 .0037 .84 |
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OH8 .3633 .75 .3631 .84 |
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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 (permalink) |
| |
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