Na2CaMg(PO4)2
Alkemper J, Fuess H
Zeitschrift fur Kristallographie 213 (1998) 282-287
The crystal structures of NaMgPO4, Na2CaMg(PO4)2 and Na18Ca13Mg5(PO4)18:
new examples for glaserite related structures
Locality: synthetic
Note: known as the beta polymorph of Na2CaMg(PO4)2
_database_code_amcsd 0011079
5.309 5.309 7.237 90 90 120 P-3m1
atom    x     y    z Biso
Na    1/3   2/3 .766  1.0
Ca      0     0   .5  1.0
Mg      0     0    0  0.8
P     1/3   2/3 .249  0.4
O1    1/3   2/3 .029  1.0
O2   .176 -.176  .31  1.0