Diopside Tribaudino M European Journal of Mineralogy 8 (1996) 273-279 High-temperature crystal chemistry of C2/c clinopyroxenes along the join CaMgSi2O6-CaAl2SiO6 Sample: Di70CaTs30 at 500 C _database_code_amcsd 0006624 9.717 8.886 5.288 90 106.29 90 C2/c atom x y z occ Biso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) CaM2 0 .3027 .25 1.62 .0269 .0155 .0152 0 -.0003 0 MgM1 0 .9074 .25 .7 .98 .0128 .0132 .0106 0 .0021 0 AlM1 0 .9074 .25 .3 .98 .0128 .0132 .0106 0 .0021 0 AlT .2870 .0935 .2256 .15 .75 .0085 .0104 .0093 -.0003 .0022 -.0009 SiT .2870 .0935 .2256 .85 .75 .0085 .0104 .0093 -.0003 .0022 -.0009 O1 .1126 .0854 .1361 1.26 .0092 .0219 .0166 .0009 .0036 -.0016 O2 .3619 .2536 .3159 1.62 .0247 .0163 .0198 -.0043 .0048 -.0016 O3 .3515 .0169 -.0063 1.26 .0122 .0207 .0147 -.0002 .0036 -.0058