Sekaninaite
Hochella M F, Brown G E, Ross F K, Gibbs G V
American Mineralogist 64 (1979) 337-351
High-temperature crystal chemistry of hydrous Mg- and Fe-cordierite
Dolni Bory, T = 24 C
_database_code_amcsd 0000709
17.230 9.835 9.314 90 90 90 Cccm
atom x y z occ B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3)
Mg .1632 .5 .25 .17 .00047 .00119 .00162 0 0 .00012
Fe .1632 .5 .25 .83 .00047 .00119 .00162 0 0 .00012
Al11 .25 .25 .2502 .00041 .00104 .00064 .00014 0 0
Si16 0 .5 .25 .00031 .00122 .00044 0 0 0
Si21 .1901 .0794 0 .00037 .00038 .00064 .00012 0 0
Al26 .0501 .3076 0 .00033 .00064 .00069 .00013 0 0
Si23 -.1347 .2343 0 .00034 .00043 .00073 -.00022 0 0
O11 .2442 .1052 .1415 .00069 .00129 .00093 -.00015 -.00044 -.00034
O16 .0611 .4144 .1522 .00070 .00207 .00134 .00030 .00023 -.00058
O13 -.1729 .3053 .1428 .00080 .00186 .00094 -.00021 .00003 -.00084
O21 .1188 .1822 0 .00072 .00176 .00404 .00066 0 0
O26 -.0435 .2449 0 .00040 .00363 .00494 -.00016 0 0
O23 -.1615 .0778 0 .00090 .00101 .00382 .00007 0 0
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Sekaninaite
Hochella M F, Brown G E, Ross F K, Gibbs G V
American Mineralogist 64 (1979) 337-351
High-temperature crystal chemistry of hydrous Mg- and Fe-cordierite
Dolni Bory, T = 375 C
_database_code_amcsd 0000710
17.258 9.847 9.328 90 90 90 Cccm
atom x y z occ B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3)
Mg .1632 .5 .25 .17 .00080 .00256 .00402 0 0 .00010
Fe .1632 .5 .25 .83 .00080 .00256 .00402 0 0 .00010
Al11 .25 .25 .2501 .00094 .00208 .00104 .00038 0 0
Si16 0 .5 .25 .00017 .00219 .00144 0 0 0
Si21 .1894 .0795 0 .00065 .00144 .00117 .00004 0 0
Al26 .0499 .3077 0 .00043 .00162 .00208 .00039 0 0
Si23 -.1350 .2344 0 .00059 .00151 .00140 -.00012 0 0
O11 .2438 .1049 .1412 .00101 .00269 .00269 .00018 -.00080 -.00040
O16 .0609 .4151 .1509 .00095 .00324 .00285 .00023 -.00018 -.00131
O13 -.1729 .3049 .1427 .00065 .00454 .00254 -.00045 .00046 -.00025
O21 .1200 .1833 0 .00137 .00270 .00702 .00109 0 0
O26 -.0434 .2462 0 .00056 .00579 .00607 -.00107 0 0
O23 -.1607 .0766 0 .00190 .00115 .00621 -.00069 0 0
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Sekaninaite
Radica F, Capitelli F, Bellatreccia F, Della Ventura G, Cavallo A,
Piccinini M, Hawthorne F C
Mineralogical Magazine 77 (2013) 485-498
Spectroscopy and X-ray structure refinement of sekaninaite
from Dolni Bory (Czech Republic)
Locality: Dolni Bory, Czech Republic
_database_code_amcsd 0020088
17.2340 9.8457 9.3463 90 90 90 Cccm
atom x y z occ Uiso
Na 0 0 0 .203 .035
MgM .33688 0 .25 .035 .01448
FeM .33688 0 .25 .873 .01448
LiM .33688 0 .25 .09 .01448
AlT4 .25 .25 .25011 .01421
AlT5 .04972 .30757 0 .01298
SiT1 0 .5 .25 .0136
SiT2 .18999 .07921 0 .01273
SiT3 .13471 .76594 0 .01270
O1 .24402 .89508 .35809 .0166
O2 .06074 .58523 .34885 .0165
O3 .82705 .69477 .35782 .0167
O4 .04328 .7543 0 .0210
O5 .11931 .18336 0 .0209
O6 .16213 -.07670 0 .0204
O7 .0580 0 .25 .03 .069
Wat8 0 0 .25 .62 .101
C8 0 0 .25 .03 .101
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