Matsubaraite
Miyajima H, Miyawaki R, Ito K
European Journal of Mineralogy 14 (2002) 1119-1128
Matsubaraite, Sr4Ti5(Si2O7)2O8, a new mineral, the Sr-Ti analogue
of perrierite in jadeitite from the Itoigawa-Ohmi district,
Niigata Prefecture, Japan
Locality: Itoigawa-Ohmi district, Niigata Prefecture, Japan
_database_code_amcsd 0006952
13.850 5.631 11.8920 90 114.143 90 C2/m
atom      x      y      z   Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Sr1  .76487      0 .73287 .00758 .00811 .00870 .00640   .000 .00344   .000
Sr2  .54607     .5 .73841 .00788 .00790  .0100 .00602   .000 .00315   .000
Ti1       0     .5     .5 .00488  .0069  .0054  .0027   .000  .0024   .000
Ti2      .5 .74369      0 .00573  .0091  .0045  .0032   .000  .0021   .000
Ti3  .27126      0 .00074 .00616  .0083  .0048  .0052   .000  .0026   .000
Si1  .40654      0 .73070  .0045  .0058  .0061  .0019   .000  .0020   .000
Si2  .84194      0 .45339  .0052  .0059  .0056  .0039   .000  .0018   .000
O1   .06287  .2652  .1824  .0069  .0098  .0066  .0041 -.0010  .0025  .0008
O2   .29210  .2491  .1185  .0064  .0104  .0055  .0034  .0000  .0029 -.0002
O3   .39456  .2601  .4189  .0083  .0095  .0077  .0077  .0017  .0033  .0004
O4    .0937      0  .9998  .0076  .0067  .0054  .0114   .000  .0044   .000
O5    .4046      0 -.0007  .0076  .0062  .0075  .0098   .000  .0038   .000
O6    .4709      0  .6442  .0087  .0101  .0117  .0050   .000  .0038   .000
O7    .2791      0  .6563  .0100  .0065  .0140  .0069   .000  .0000   .000
O8    .1478      0  .4109  .0103  .0127  .0131  .0058   .000  .0044   .000