Diopside Secco L, Martignago F, Dal Negro A, Reznitskii L Z, Sklyarov E V American Mineralogist 87 (2002) 709-714 Crystal chemistry of Cr-V-rich clinopyroxenes Sample 6 _database_code_amcsd 0002811 9.6774 8.8479 5.2662 90 106.446 90 C2/c atom x y z occ Uiso SiT .28864 .09214 .23137 .995 .00432 AlT .28864 .09214 .23137 .005 .00432 CrM1 0 .90572 .25 .223 .00523 VM1 0 .90572 .25 .257 .00523 MgM1 0 .90572 .25 .488 .00523 AlM1 0 .90572 .25 .019 .00523 FeM1 0 .90572 .25 .011 .00523 TiM1 0 .90572 .25 .001 .00523 MnM1 0 .90572 .25 .001 .00523 CaM2 0 .30190 .25 .509 .00920 NaM2 0 .30190 .25 .491 .00920 O1 .11470 .08259 .14011 .00691 O2 .36050 .25325 .31172 .00847 O3 .35159 .01436 .00085 .00714