Maya Blue
Giustetto R, Levy D, Chiari G
European Journal of Mineralogy 18 (2006) 629-640
Crystal structure refinement of Maya Blue pigment prepared with deuterated
indigo, using neutron powder diffraction
Locality: starting palygorskite from Chapas, Mexico
_database_code_amcsd 0007167
12.636 17.868 5.223 90 90 90 Pbmn
atom       x     y     z occ Uiso
Mg2        0 .0882    .5 .56  .53
Al2        0 .0882    .5 .41  .53
Fe2        0 .0882    .5 .03  .53
Mg3        0  .176     0 .56  .53
Al3        0  .176     0 .41  .53
Fe3        0  .176     0 .03  .53
Si1     .232 .0887  .803     .019
Si2    .2041 .1688  .324     .019
O1      .105 .1009  .759     .029
O2      .077 .1822  .361     .029
OH      .040     0  .269     .029
Ow1     .093  .256  .800     .029
DWH1    .176  .233  .771 .34 .029
DWH1'   .107  .299  .851 .20 .029
DWH1''  .057  .260  .620 .22 .029
O3      .262     0  .805     .029
O4       .25   .25  .239     .029
O5      .275 .1355  .556     .029
O6      .203 .1071  .098     .029
OZW2    .045  .368  .226 .24 .018
DZW2'   .072  .416   .26 .07 .018
DZW2'' -.061  .382   .95 .07 .018
DZW2^   .109  .378   .33 .03 .018
DZW2^^ -.014  .323   .75 .03 .018
DZW2*    .03  .410   .29 .14 .018
DZW2**  .014  .335   .77 .14 .018
OZW3a   .164    .5   .26 .36 .018
OZW3b   .155    .5   .36 .33 .018
DZW3'   .212  .456   .23 .34 .018
DZW3^    .21    .5   .44 .02 .018
DZW3^^   .19    .5   .15 .02 .018
DZW3*   .181  .453   .44 .33 .018
OZW4a      0  .494     0 .19 .018
OZW4b  -.010    .5   .07 .19 .018
DZW4'   .060  .499  .102 .19 .018
DZW4''  .009  .448   .06 .19 .018
C1      .004    .5 .3611 .10 .048
C2      .009  .424  .197 .05 .048
C3      .017  .456 -.072 .10 .048
C4       .03  .418 -.315 .10 .048
C5       .03  .462 -.541 .10 .048
N1      .009  .564  .197 .05 .048
Oin     .007  .357  .259 .05 .048
H1      .008  .618  .247 .05 .048
D4       .03  .362 -.316 .10 .048
D5       .04  .433 -.709 .10 .048