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Stanfieldite |
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Dickens B, Brown W E |
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Tschermaks Mineralogische und Petrographische Mitteilungen 16 (1971) 79-104 |
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The crystal structure of Ca7Mg9(Ca,Mg)2(PO4)12 |
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Locality: synthetic |
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_database_code_amcsd 0015640 |
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22.8410 9.994 17.088 90 99.63 90 C2/c |
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atom x y z occ B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) |
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Ca1 0 .1043 .25 .000345 .002128 .000810 0 .000277 0 |
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Ca2 .18664 .34813 .43359 .000468 .001076 .000405 .000133 .000145 .000059 |
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Ca3 .33977 .45242 .06518 .000532 .002578 .000749 .000411 -.000165 -.000594 |
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Ca4 .41099 .08359 .39193 .000389 .001827 .000335 .000244 .000132 .000282 |
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Ca .06623 .1043 .08842 .51 .000932 .006358 .001277 .000955 .000382 .000223 |
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Mg .06623 .1043 .08842 .49 .000932 .006358 .001277 .000955 .000382 .000223 |
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Mg1 0 .5734 .25 .000296 .002128 .001180 0 .000376 0 |
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Mg2 .23620 .1334 .13010 .000306 .001277 .000396 .000689 .000119 -.000030 |
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Mg3 .39329 .3522 .26416 .000409 .002478 .001251 .000411 .000362 .000698 |
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Mg4 .23448 .3824 .22490 .000355 .001452 .000291 -.000122 .000046 -.000074 |
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Mg5 .42031 .0906 .05163 .000281 .001627 .000555 -.000089 .000099 .000045 |
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P1 .31679 .38196 .39954 .000251 .001101 .000273 .000100 .000099 .000045 |
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P2 .16277 .11525 .27448 .000237 .000826 .000379 -.000078 .000119 -.000045 |
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P3 .36202 .0802 .21366 .000187 .001277 .000238 -.000044 .000119 .000000 |
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P4 .19428 .37852 .02436 .000212 .001076 .000229 .000089 .000053 .000030 |
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P5 -.00032 .3504 .09497 .000365 .001277 .000493 -.000122 .000033 .000178 |
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P6 .47412 .3632 .11792 .000207 .001327 .001268 -.000089 .000152 -.000223 |
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O1 .2567 .4158 .3448 .000256 .001977 .000388 .000144 .000040 -.000119 |
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O2 .3015 .3203 .4749 .000986 .003504 .000617 .000555 .000481 .000876 |
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O3 .3571 .2922 .3602 .000444 .001877 .000705 .000455 .000231 -.000104 |
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O4 .3450 .5221 .4192 .000419 .001602 .001057 -.000122 .000079 -.000386 |
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O5 .1011 .1211 .2228 .000301 .004255 .001145 -.000300 -.000066 .000148 |
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O6 .1627 .1627 .3593 .000789 .002002 .000440 -.000433 .000270 -.000074 |
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O7 .2079 .1899 .2341 .000458 .001352 .000705 -.000078 .000329 -.000193 |
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O8 .1819 -.0354 .2825 .000375 .000901 .000969 .000022 .000297 -.000030 |
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O9 .3774 .0034 .1425 .000458 .001827 .000528 -.000133 .000244 -.000178 |
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O10 .4195 .1532 .2574 .000232 .001927 .000458 -.000255 .000007 -.000089 |
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O11 .3413 -.0093 .2764 .000365 .002253 .000440 -.000300 .000112 .000312 |
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O12 .3172 .1910 .1860 .000316 .001827 .000617 .000189 .000007 -.000059 |
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O13 .2442 .4176 -.0216 .000375 .002503 .000546 -.001822 .000297 -.000297 |
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O14 .2234 .3308 .1074 .000641 .001652 .000238 .000489 .000013 .000015 |
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O15 .1522 .2734 -.0204 .000286 .001402 .000793 .000011 .000013 -.000252 |
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O16 .1574 .5058 .0303 .000355 .001126 .000705 .000311 .000112 .000089 |
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O17 -.0527 .3971 .0316 .000592 .003004 .000705 .000444 -.000099 .000089 |
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O18 .0568 .3479 .0572 .000592 .004005 .000793 -.000144 .000389 .000297 |
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O19 -.0094 .2111 .1268 .000690 .002753 .001321 -.000444 -.000198 .001039 |
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O20 .0105 .4551 .1612 .000690 .003504 .000881 -.000411 .000152 -.000891 |
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O21 .4288 .4061 .1690 .001134 .003004 .003083 .000778 .001384 .001633 |
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O22 .4501 .4204 .0359 .002169 .003254 .001850 .000667 .000264 .000445 |
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O23 .5340 .4263 .1530 .000306 .002503 .003876 .000000 -.000395 -.001336 |
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O24 .4814 .2095 .1178 .000414 .001502 .001585 -.000144 -.000066 -.000148 |
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| Download AMC data (View Text File)
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Download diffraction data (View Text File)
View JMOL 3-D Structure (permalink)
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