Nacrite
Zheng H, Bailey S W
Clays and Clay Minerals 42 (1994) 46-52
Refinement of the nacrite structure
Locality: Red Mountain near Silverton, Colorado, USA
_database_code_amcsd 0012238
8.906 5.146 15.664 90 113.58 90 Cc
atom     x     y      z B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3)
Al1  .1552 .3198  .2177  .0034  .0090  .0017  .0000  .0012 -.0002
Al2  .4901 .3245  .2173  .0033  .0082  .0021 -.0003  .0016 -.0002
Sil  .2012 .4700  .0277  .0034  .0052  .0021 -.0001  .0016  .0000
Si2  .3715 .9831  .0270  .0036  .0065  .0017 -.0002  .0013 -.0001
O1   .2411 .7499 -.0041  .0047  .0097  .0023  .0028  .0014  .0005
O2   .2723 .2470 -.0188  .0053  .0080  .0023 -.0013  .0019  .0000
O3   .0029 .4417 -.0193  .0034  .0124  .0019 -.0004  .0012  .0003
O4   .2696 .4385  .1385  .0021  .0047  .0024 -.0004  .0014 -.0001
O5   .4618 .0110  .1381  .0040  .0115  .0020 -.0026  .0014  .0004
Oh1  .0795 .0118  .1432  .0053  .0095  .0023  .0024  .0021  .0006
Oh2  .5580 .6342  .2838  .0054  .0118  .0020 -.0016  .0018  .0000
Oh3  .1780 .6296  .2825  .0043  .0099  .0019  .0007  .0012  .0000
Oh4  .3693 .2066  .2826  .0049  .0154  .0016 -.0010  .0013 -.0010
H1   .6346 .4510  .1277
H2   .5475 .6736  .3279
H3   .2432 .6096  .3296
H4   .4317 .1386  .3228