Keiviite-(Yb)
Smolin Y I, Shepelev Y F
Acta Crystallographica B26 (1970) 484-492
The crystal structures of the rare earth pyrosilicates
Locality: synthetic
_database_code_amcsd 0009370
6.802 8.875 4.703 90 102.12 90 C2/m
atom     x      y     z Biso
Yb      .5 .80687     0  .25
Si   .7189     .5 .4125  .37
O1      .5     .5    .5 1.02
O2   .8831     .5 .7151   .5
O3   .7361  .6504 .2197  .54