Effenbergerite
Chakoumakos B C, Fernandez-Baca J A, Boatner L A
Journal of Solid State Chemistry 103 (1993) 105-113
Refinement of the structures of the layer silicates MCuSi4O10 (M=Ca,Sr,Ba)
by Rietveld analysis of neutron powder diffraction data
Note: gillespite structure
Locality: synthetic
_database_code_amcsd 0013767
7.4409 7.4409 16.1367 90 90 90 *P4/ncc
.25 -.25 0
atom     x     y     z Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Ba     .25   .75     0 .008   .010   .010   .005      0      0      0
Cu     .25   .25 .0946 .007   .005   .005   .010      0      0      0
Si   .5186 .9389 .1549 .007   .006   .008   .008   .000   .002   .001
O1   .4742 .9742   .25 .027   .036   .036   .010  -.007   .013  -.013
O2   .7242 .9988 .1367 .012   .000   .018   .018 -.0022 -.0007   .008
O3   .3872 .0316 .0902 .014   .012   .005   .026  .0059  -.012  -.003