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 = 468 K
Melilite group
_database_code_amcsd 0008510
7.8563 7.8563 5.0294 90 90 90 P-42_1m
atom     x     y     z Biso
Co       0     0     0 1.23
Ca   .3314 .1686 .5047 2.04
Si   .1391 .3609 .9375 1.09
O1       0    .5  .821  3.3
O2   .1406 .3594 .2544 2.26
O3   .0805 .1891 .7849  2.9