Richterite
Hawthorne F C, Della Ventura G, Robert J-L, Welch M D, Jenkins D M
American Mineralogist 82 (1997) 708-716
A Rietveld and infrared study of synthetic amphiboles along the
potassium-richterite-tremolite join
Sample: Kr60
_database_code_amcsd 0001916
9.9884 18.016 5.2730 90 104.746 90 C2/m
atom     x     y     z occ
Si1  .2813 .0844 .2992
Si2  .2799 .1696 .7975
Mg1      0 .0884    .5
Mg2      0 .1788     0
Mg3      0     0     0
Ca4      0 .2755    .5  .7
Na4      0 .2755    .5  .3
KA    .013    .5  .037  .6
O1   .1160 .0891 .2260
O2   .0981 .1731 .7112
O3   .1065     0 .7131
O4   .3543 .2493 .7914
O5   .3370 .1300 .0889
O6   .3360 .1149 .5942
O7   .3323     0 .2995