Stichtite
Mills S J, Whitfield P S, Wilson S A, Woodhouse J N, Dipple G M,
Raudsepp M, Francis C A
American Mineralogist 96 (2011) 179-187
The crystal structure of stichtite, re-examination of barbertonite, and the
nature of polytypism in MgCr hydrotalcites
Note: 3R1 polytype of stichtite
Locality: Tasmania, Australia
_database_code_amcsd 0018330
3.09552 3.09552 23.5042 90 90 120 R-3m
atom     x      y      z  occ Biso
Mg       0      0      0  .77  .16
Cr       0      0      0  .23  .16
O1     1/3    2/3 .37268       .04
H1     1/3    2/3 .41108       .04
Wat2 .1242 -.1242     .5 .102  .02
CO3    1/3    2/3     .5 .059  .02
O3   .1242 -.1242     .5 .059  .02