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 = 533 K
Melilite group
_database_code_amcsd 0008513
7.8615 7.8615 5.0268 90 90 90 P-42_1m
atom     x     y     z Biso
Co       0     0     0 1.07
Ca   .3315 .1685 .5049 1.81
Si   .1392 .3608 .9361  .89
O1       0    .5  .823  2.5
O2   .1400 .3600 .2545 2.06
O3   .0810 .1887 .7852 2.16