Pargasite Sharma A, Jenkins D M American Mineralogist 84 (1999) 1304-1318 Hydrothermal synthesis of amphiboles along the tremolite-pargasite join and in the ternary system tremolite-pargasite-cummingtonite Sample: PARG 18-3 _database_code_amcsd 0002279 9.8160 18.040 5.2775 90 104.741 90 C2/m atom x y z occ Biso O1 .1156 .0850 .2198 .8 O2 .1139 .1718 .7194 .8 O3 .1119 0 .7201 .8 O4 .3587 .2465 .7867 .8 O5 .3443 .1335 .1002 1.1 O6 .3407 .1163 .5913 1.1 O7 .3367 0 .2942 1.2 Si1 .2816 .0843 .2979 .96 .4 Al1 .2816 .0843 .2979 .04 .4 Si2 .2881 .1704 .8032 .96 .4 Al2 .2881 .1704 .8032 .04 .4 Mg1 0 .0868 .5 .96 .6 Al1 0 .0868 .5 .04 .6 Mg2 0 .1767 .5 .96 .6 Al2 0 .1767 .5 .04 .6 Mg3 0 0 0 .96 .6 Al3 0 0 0 .04 .6 Ca4 0 .2773 .5 .91 .9 Mg4 0 .2773 .5 .09 .9 NaA 0 .5 0 .14 2.3