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 21-2 _database_code_amcsd 0002278 9.8184 18.021 5.2780 90 104.829 90 C2/m atom x y z occ Biso O1 .1108 .0864 .2187 .8 O2 .1132 .1722 .7179 .8 O3 .1084 0 .7183 .8 O4 .3590 .2465 .7846 .8 O5 .3442 .1352 .1022 1.1 O6 .3429 .1155 .5954 1.1 O7 .3371 0 .2932 1.2 Si1 .2803 .0854 .2966 .90 .4 Al1 .2803 .0854 .2966 .10 .4 Si2 .2892 .1709 .8065 .90 .4 Al2 .2892 .1709 .8065 .10 .4 Mg1 0 .0873 .5 .92 .6 Al1 0 .0873 .5 .08 .6 Mg2 0 .1768 .5 .92 .6 Al2 0 .1768 .5 .08 .6 Mg3 0 0 0 .92 .6 Al3 0 0 0 .08 .6 Ca4 0 .2775 .5 .84 .9 Mg4 0 .2775 .5 .16 .9 NaA 0 .5 0 .43 2.3