Phenakite
Hazen R M, Au A Y
Physics and Chemistry of Minerals 13 (1986) 69-78
High-pressure crystal chemistry of phenakite (Be2SiO4)
and bertrandite (Be4Si2O7(OH)2)
Sample: P = 1 bar
_database_code_amcsd 0007371
12.4704 12.4704 8.2504 90 90 120 R-3
atom      x      y      z Biso B(1,1) B(2,2) B(3,3) B(1,2)  B(1,3)  B(2,3)
Be1   .1941  .2104  .4155  .36 .00095 .00083 .00097 .00045 -.00011  .00007
Be2   .1941  .2118  .0841  .40 .00089 .00107 .00117 .00055  .00001 -.00003
Si   .19550 .21155 .74996  .14 .00032 .00040 .00039 .00021  .00004  .00005
O1    .2095  .0884  .7503  .29 .00099 .00054 .00086 .00049 -.00007  .00004
O2    .3336  .3332  .7501  .26 .00048 .00054 .00109 .00025 -.00005 -.00008
O3    .1225  .2100  .9146  .26 .00061 .00089 .00059 .00049  .00006  .00004
O4    .1225  .2090  .5850  .28 .00054 .00099 .00057 .00045  .00001  .00006