Segelerite
Moore P B, Araki T
American Mineralogist 62 (1977) 692-702
Overite, segelerite, and jahnsite: a study in combinatorial polymorphism
_database_code_amcsd 0000583
14.826 18.751 7.307 90 90 90 Pbca
atom      x     y     z Biso
Ca    .0086 .2469 .2442 1.33
Mg    .1264 .5009 .7522 1.14
Fe    .2593 .2486 .2421  .64
P1    .3967 .3497 .4914  .79
P2    .1225 .3515 .5075  .70
O1    .3497 .3212 .6658 1.25
O2    .3668 .3076 .3217  .76
O3    .4992 .3326 .5037 1.28
O4    .3821 .4281 .4869 1.22
O5    .1536 .3089 .6824 1.11
O6    .1703 .3255 .3366 1.63
O7    .0203 .3300 .4905 1.32
O8    .1400 .4314 .5431  .61
OH    .2577 .2967 .0051 1.28
Wat1  .2681 .5086 .7551 1.15
Wat2 -.0114 .4913 .7405 1.83
Wat3  .1325 .4218 .9567  .91
Wat4  .1191 .5810 .5504 1.60