Cavansite
Hughes J M, Derr R S, Cureton F, Campana C F, Druschel G
The Canadian Mineralogist 49 (2011) 1267-1272
The crystal structure of cavansite: location of the H2O molecules and
hydrogen atoms in Ca(VO)(Si4O10)*4H2O
Note: T = 100 K
Locality: Pune, India
_database_code_amcsd 0018620
9.7518 13.6854 9.5965 90 90 90 Pcmn
atom       x       y       z   Uiso
V    .403461     .25 .527127 .00441
Ca   .081188     .25 .384158 .00538
Si1  .092905 .033726 .184986 .00382
Si2  .314548 .043079 .394816 .00367
O1    .08484 .150457  .17923 .00609
O2    .29352 .157711  .41364 .00677
O3    .44562 .019683  .29592 .00688
O4    .16568 .989344  .04467 .00605
O5    .18145 .995496  .31844 .00555
O6    .55289     .25  .45740 .01021
OW7   .94626  .11855  .47063 .01585
H7a   -.1211   .1117   .4266   .034
H7b   -.0728   .0887   .5460   .031
OW8   .13254     .25  .63927 .01471
H8a    .1283   .2993   .6935   .047
OW9   .81138     .25  .28676 .02668
H9a   -.2705     .25   .3162   .033
H9b    -.202     .25    .197   .057