Greifensteinite
Rastsvetaeva R K, Gurbanova O A, Chukanov N V
Doklady Chemistry 383 (2002) 78-81
Crystal structure of greifensteinite
Ca2Be4(Fe2+,Mn)5(PO4)6(OH)4*6H2O
Locality: Greifenstein, Saxony, Germany
_database_code_amcsd 0012508
15.903 11.885 6.677 90 94.68 90 C2/c
atom     x     y     z occ  Biso
Ca       0 .2580   .25     1.634
Be   .3323 .1746  .299      1.49
Fe   .1708 .1619 .9966  .8  1.20
Al   .1708 .1619 .9966  .1  1.20
Mg   .1708 .1619 .9966  .1  1.20
Mn       0     0     0 .35  1.33
P1   .1867 .1182 .4783      1.03
P2       0 .2740   .75      1.26
O1   .3580 .4955 .4936      1.50
O2   .2804 .0978 .4465      1.52
O3   .1432 .1831 .3010      1.65
O4   .3194 .3132 .3272      1.46
O5   .4617 .2993 .0741      1.97
O6   .4327 .1492 .3333      1.98
OH   .3007 .1623 .0647      1.54
Ow1  .0939 .4190 .2255      2.09
Wat2     0 .0409   .25 .65  3.98
OH2      0 .0409   .25 .35  3.98
H1    .079  .494 .1939         4
H2    .135  .411  .315         5