Tremolite Comodi P, Mellini M, Ungaretti L, Zanazzi P F European Journal of Mineralogy 3 (1991) 485-499 Compressibility and high pressure structure refinement of tremolite, pargasite and glaucophane Sample: pressure at ambient conditions (.001 kbar) _database_code_amcsd 0006413 9.840 18.042 5.276 90 104.76 90 C2/m atom x y z occ Uiso MgM1 0 .0877 1/2 .99 .0059 FeM1 0 .0877 1/2 .01 .0059 MgM2 0 .1764 0 .99 .0082 FeM2 0 .1764 0 .01 .0082 MgM3 0 0 0 .99 .0055 FeM3 0 0 0 .01 .0055 CaM4 0 .2779 1/2 .5 .0079 CaM42 .0409 .2778 .5648 .25 .0100 SiT1 .2802 .0840 .2968 .0041 SiT2 .2883 .1712 .8049 .0043 O1 .1118 .0860 .2180 .0058 O2 .1189 .1711 .7249 .0059 O3 .1086 0 .7161 .0077 O4 .3651 .2480 .7919 .0077 O5 .3463 .1347 .1005 .0077 O6 .3439 .1185 .5894 .0071 O7 .3372 0 .2918 .0082 H .181 0 .740 .022