Margarosanite Freed R L, Peacor D R Zeitschrift fur Kristallographie 128 (1969) 213-228 Determination and refinement of the crystal structure of margarosanite, PbCa2Si3O9 Locality: Parker Shaft, North Mine Hill, Franklin, New Jersey, USA _database_code_amcsd 0010672 6.768 9.575 6.718 110.36 102.98 83.02 P-1 atom x y z Biso Pb .0886 .1582 .2865 .57 Ca1 .2700 .4951 .7629 .19 Ca2 .4430 .1677 .9297 .43 Si1 .0957 .7817 .1590 .28 Si2 .2328 .5149 .2803 .38 Si3 .4382 .7982 .5148 .3 O1 .2274 .7469 .9779 .35 O2 .1092 .1245 .9071 .24 O3 .2299 .8790 .3955 1.15 O4 .0469 .6266 .1967 .34 O5 .3732 .4380 .1057 .49 O6 .1238 .4072 .3561 .72 O7 .3569 .6373 .5073 .37 O8 .4795 .0977 .2392 .39 O9 .3885 .2379 .6244 .35