Omphacite Pavese A, Bocchio R, Ivaldi G Mineralogical Magazine 64 (2000) 983-993 In situ high temperature single crystal X-ray diffraction study of a natural omphacite Locality: Gorduno, Lepontine Alps, Switzerland Note: structure at room temperature (T=298K) _database_code_amcsd 0014547 9.569 8.759 5.256 90 106.96 90 P2/n atom x y z occ Uiso CaM2 .75 .0523 .25 .291 .0094 NaM2 .75 .0523 .25 .709 .0094 CaM21 .75 .4505 .75 .709 .0105 NaM21 .75 .4505 .75 .291 .0105 MgM1 .75 .65926 .25 .46 .0069 AlM1 .75 .65926 .25 .48 .0069 FeM1 .75 .65926 .25 .06 .0069 MgM11 .75 .84740 .75 .46 .0033 AlM11 .75 .84740 .75 .48 .0033 FeM11 .75 .84740 .75 .06 .0033 SiT1 .03948 .84770 .22674 .985 .0044 AlT1 .03948 .84770 .22674 .015 .0044 SiT2 .03722 .66247 .73047 .985 .0043 AlT2 .03722 .66247 .73047 .015 .0043 O11 .8630 .8393 .1201 .0067 O12 .8610 .6780 .6482 .0067 O21 .1149 .0102 .3093 .0079 O22 .1061 .4975 .8050 .0090 O31 .1066 .7665 .0039 .0067 O32 .0980 .7403 .4977 .0071