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