Diopside Dal Negro A, Manoli S, Secco L, Piccirillo E M European Journal of Mineralogy 1 (1989) 105-121 Megacrystic clinopyroxenes from Victoria (Australia): Crystal chemical comparisons of pyroxenes from high and low pressure regimes Sample: Fr-4 Locality: Victoria, Australia _database_code_amcsd 0006344 9.693 8.839 5.279 90 106.68 90 C2/c atom x y z occ Biso CaM2 0 .2976 .25 .631 1.11 NaM2 0 .2976 .25 .163 1.11 FeM2 0 .2976 .25 .147 1.11 MgM2 0 .2976 .25 .055 1.11 MnM2 0 .2976 .25 .004 1.11 AlM1 0 .9056 .25 .203 .44 FeM1 0 .9056 .25 .148 .44 MgM1 0 .9056 .25 .607 .44 TiM1 0 .9056 .25 .042 .44 SiT .2890 .0926 .2322 .8885 .61 AlT .2890 .0926 .2322 .1115 .61 O1 .1140 .0852 .1383 .83 O2 .3635 .2538 .3221 1.12 O3 .3523 .0178 -.0011 .90