Hydroxycalciopyrochlore
Yang G, Li G, Xiong M, Pan B, Yan C
Acta Geologica Sinica 88 (2014) 748-753
Hydroxycalciopyrochlore, a new mineral species from Sichuan, China
Locality: Maoniuping mine, Mianning County, Xichang prefecture, Sichuan Province, China
_database_code_amcsd 0020233
10.381 10.381 10.381 90 90 90 *Fd3m
.125 .125 .125
atom    x    y    z  occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Ca1     0   .5   .5  .37   .015   .015   .015 -.0004 -.0004 -.0004
Na1     0   .5   .5  .29   .015   .015   .015 -.0004 -.0004 -.0004
U1      0   .5   .5  .20   .015   .015   .015 -.0004 -.0004 -.0004
Ce1     0   .5   .5 .025   .015   .015   .015 -.0004 -.0004 -.0004
Fe1     0   .5   .5  .01   .015   .015   .015 -.0004 -.0004 -.0004
Nb2   .75  .75   .5 .575   .021   .021   .021 -.0006  .0006  .0006
Ti2   .75  .75   .5  .40   .021   .021   .021 -.0006  .0006  .0006
Ta2   .75  .75   .5 .015   .021   .021   .021 -.0006  .0006  .0006
Al2   .75  .75   .5 .005   .021   .021   .021 -.0006  .0006  .0006
Mg2   .75  .75   .5 .005   .021   .021   .021 -.0006  .0006  .0006
O1   .875 .677 .375        .024   .024   .024      0   .009      0
OH2  .875 .375 .375  .91    .06    .06    .06      0      0      0
F2   .875 .375 .375  .09    .06    .06    .06      0      0      0