Sn6SiO8
Locock A J, Ramik R A, Back M E
The Canadian Mineralogist 44 (2006) 1457-1467
The structures of two novel Sn2+ oxysalts found with romarchite and
hydroromarchite as corrosion products of pewter artifacts
_database_code_amcsd 0006130
7.3742 7.3742 11.9598 90 90 120 P6_3mc
atom      x      y      z   Uiso
Sn1  .82637 .17363 .59214 .03065
Sn2  .49272 .50728 .85203 .02947
Si      1/3    2/3  .5963  .0146
O1    .4547  .9094  .5477  .0275
O2      1/3    2/3  .7307   .024
O3      2/3    1/3  .6177  .0118
O4    .1946  .3891  .9208  .0167