Clinochlore
Guggenheim S, Zhan W
American Mineralogist 84 (1999) 1415-1421
Crystal structures of two partially dehydrated chlorites: The "modified"
chlorite structure
Sample: chromian clinochlore-IIb-2
Note: The sites labeled I are of undetermined occupancies.
_database_code_amcsd 0002314
5.372 9.291 14.270 90 97.34 90 C2/m
atom     x     y     z occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Mg1      0     0     0 .99   .013   .007   .096      0   .003      0
Al1      0     0     0 .01   .013   .007   .096      0   .003      0
Mg2      0 .3331     0 .99   .015  .0080   .098      0   .002      0
Al2      0 .3331     0 .01   .015  .0080   .098      0   .002      0
Si   .2323 .1673 .1934 .76  .0238  .0163   .093  .0005  .0022  .0006
Al   .2323 .1673 .1934 .24  .0238  .0163   .093  .0005  .0022  .0006
O1   .1937 .1668 .0768       .020   .015   .105   .000   .002   .001
O2    .208     0 .2357       .058   .022   .116      0  -.011      0
O3   .5145 .2303 .2351       .043   .047   .140  -.012   .010  -.008
OH4  .1909    .5 .0752       .020   .014   .127      0   .004      0
I1    .129     0  .388       .042   .044   .151      0   .007      0
I2    .195  .664 .5747       .089   .084   .110  -.004  -.013   .007
I3    .133 .3321 .4096       .041   .038   .215   .003   .025   .013
I4    .198     0  .596       .103   .088   .106      0  -.004      0