Colinowensite
Chen Y, Zhang Y, Feng S
Dyes and Pigments 105 (2014) 167-173
Hydrothermal synthesis and properties of pigments
Chinese purple BaCuSi2O6 and dark blue BaCu2Si2O7
Locality: synthetic
_database_code_amcsd 0020059
9.97511 9.97511 22.2887 90 90 90 *I4_1/acd
0 -.25 .125
atom      x     y      z Biso
Ba      .25 .9902     .5  .05
Cu        0   .25 .06309  .06
Si    .2776 .7525   .876  .05
O1     .207  .721  .8164  .09
O2     .374  .876  .8607  .06
O3    .3164 .7803  .0645  .02