Jahnsite-(CaMnMg)
Moore P B, Araki T
American Mineralogist 59 (1974) 964-973
Jahnsite, CaMnMg2(H2O)8Fe2(OH)2[PO4]4: A novel stereoisomerism of
ligands about octahedral corner-chains
Locality: Tip Top mine, Custer Country, South Dakota, USA
_database_code_amcsd 0000414
14.94 7.14 9.93 90 110.16 90 P2/a
atom     x      y     z Biso
Ca     .25 -.0249     0 1.69
Mn     .25  .4775     0 1.12
Mg1     .5      0    .5 1.21
Mg2    .25  .4963    .5 0.96
Fe1      0      0     0 1.58
Fe2      0     .5     0 1.70
P1   .1830  .2615 .1881  .92
P2   .0813  .7476 .7978  .87
O1   .2758  .2345 .1512 1.83
O2   .2041  .2956 .3462 1.65
O3   .1229  .0827 .1399 1.57
O4   .1369  .4352 .0941 1.15
O5   .1890  .6984 .8553 1.52
O6   .0497  .7802 .6381 1.47
O7   .0747  .9293 .8791 1.29
O8   .0245  .5881 .8314 1.29
OH   .0256  .7509 .0935 1.06
Wat1 .2231  .7185 .3445 2.09
Wat2 .4497  .2130 .3452 2.37
Wat3 .6307 -.0066 .4629 2.18
Wat4 .3917  .5131 .5115 1.72