Natrotantite
Ercit T S, Hawthorne F C, Cerny P
Bulletin de Mineralogie 108 (1985) 541-549
The crystal structure of synthetic natrotantite
Locality: synthetic
_database_code_amcsd 0012086
6.2092 6.2092 36.6190 90 90 120 R-3c
atom     x    y     z Biso
Na       0    0 .3323  3.1
Ta1  .3641    0   .25 3.14
Ta2      0    0     0 3.36
O1    .052 .414 .1975  2.2
O2    .750    0   .25  3.6
O3       0    0 .4074  1.8