Ca2CoSi2O7
Kusaka K, Hagiya K, Ohmasa M, Okano Y, Mukai M, Iishi K, Haga N
Physics and Chemistry of Minerals 28 (2001) 150-166
Determination of structures of Ca2CoSi2O7, Ca2MgSi2O7, and Ca2(Mg.55Fe.45)Si2O7
in incommensurate and normal phases and observation of diffuse streaks at high temperature
Sample: T = 393 K
Melilite group
_database_code_amcsd 0008509
7.8507 7.8507 5.0281 90 90 90 P-42_1m
atom      x      y     z Biso
Co        0      0     0 1.17
Ca   .33117 .16883 .5058 2.10
Si    .1391  .3609 .9378 1.06
O1        0     .5  .824  3.2
O2    .1403  .3597 .2553 2.29
O3    .0799  .1895 .7861  2.8