Alluaudite
Antenucci D, Fransolet A M, Miehe G, Tarte P
European Journal of Mineralogy 7 (1995) 175-181
Synthese et cristallochimie de NaCaCdMg2(PO4)3,
Phosphate nouveau a structure alluaudite sans cation trivalent
Note: P2 y-coordinate changed to reproduce bond lengths
_database_code_amcsd 0006583
12.005 12.675 6.546 90 114.55 90 C2/c
atom     x      y     z  occ Biso
NaX1   1/2      0     0 .474  2.8
CdX1   1/2      0     0 .526  2.8
NaX2     0 -.0305   1/4  .60  2.1
CaX2     0 -.0305   1/4  .40  2.1
CdM1     0  .2649   1/4 .420  1.7
CaM1     0  .2649   1/4 .580  1.7
MgM2 .2764  .6580  .363       1.3
P1       0 -.2806   1/4       2.3
P2   .2335 -.1036 .1296       1.0
O1   .4526  .7100  .542       1.9
O2    .095  .6454  .225       1.9
O3    .329  .6619  .098       1.9
O4    .127  .4123  .321       1.9
O5    .229  .8300  .317       1.9
O6    .333   .499  .391       1.9