Hancockite
Dollase W A
American Mineralogist 56 (1971) 447-464
Refinement of the crystal structures of epidote, allanite and hancockite
_database_code_amcsd 0000228
8.958 5.665 10.304 90 114.4 90 P2_1/m
atom     x    y     z occ Biso B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3)
Ca   .7639  .75 .1559      1.0  .0052  .0061  .0049      0  .0043      0
Pb   .5898  .75 .4124 0.5  1.1  .0037  .0136  .0033      0  .0027      0
Sr   .5898  .75 .4124 .25  1.1  .0037  .0136  .0033      0  .0027      0
Ca   .5898  .75 .4124 .13  1.1  .0037  .0136  .0033      0  .0027      0
Mn   .5898  .75 .4124 .12  1.1  .0037  .0136  .0033      0  .0027      0
Si1  .3370  .75 .0399       .9
Si2  .6872  .25 .2777      1.1
Si3  .1758  .75 .3119      1.0
Al1      0    0     0 .86   .9
Fe1      0    0     0 .14   .9
Al2      0    0    .5       .7
Fe3  .2903  .25 .2190 .84   .6  .0025  .0085  .0032      0  .0022      0
Al3  .2903  .25 .2190 .16   .6  .0025  .0085  .0032      0  .0022      0
O1    .235 .988  .040      1.1
O2    .290 .979  .342      1.1
O3    .796 .011  .347      1.6
O4    .052  .25  .129       .5
O5    .038  .75  .146      1.1
O6    .062  .75  .407       .9
O7    .517  .75  .169      1.7
O8    .524  .25  .309      1.8
O9    .642  .25  .110      1.5
OH10  .074  .25  .422      1.5