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: Kr100
_database_code_amcsd 0001914
10.0547 17.997 5.2746 90 104.832 90 C2/m
atom     x     y     z occ
Si1  .2756 .0859 .3014
Si2  .2844 .1710 .8016
Mg1      0 .0900    .5
Mg2      0 .1791     0
Mg3      0     0     0
Ca4      0 .2761    .5  .5
Na4      0 .2761    .5  .5
KA   .0188    .5 .0306
O1   .1070 .0881 .2143
O2   .1148 .1714 .7184
O3   .1079     0 .7231
O4   .3554 .2484 .7866
O5   .3343 .1300 .0954
O6   .3402 .1159 .6018
O7   .3267     0 .3046