Tusionite
Cooper M A, Hawthorne F C, Novak M
The Canadian Mineralogist 32 (1994) 903-907
The crystal structure of tusionite, MnSn(BO3)2,
a dolomite-structure borate
_database_code_amcsd 0005417
4.781 4.781 15.381 90 90 120 R-3
atom     x      y     z U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Mn       0      0     0  .0072  .0072  .0128  .0036      0      0
Sn       0      0    .5  .0036  .0036  .0114  .0018      0      0
B        0      0 .2444  .0062  .0062  .0124  .0031      0      0
O    .2800 -.0155 .2453  .0064  .0080  .0183  .0046 -.0010 -.0017