Minehillite
Dai Y S, Post J E, Appleman D E
American Mineralogist 80 (1995) 173-178
Crystal structure of minehillite: Twinning and structural relationships to
reyerite
_database_code_amcsd 0001716
9.777 9.777 33.293 90 90 120 P-3c1
atom      x       y      z  occ  Uiso
K         0       0    .25 .948 .0231
Zn        0  .49431    .25 .802 .0098
Al      1/3     2/3 .25112      .0080
Ca1     1/3     2/3 .11288      .0098
Ca2  .91036  .38794 .11169      .0100
Ca3  .75653 -.05187 .09618      .0113
Si1     2/3     1/3 .03155      .0074
Si2   .7581   .1246 .18744      .0076
Si3   .8727   .2386 .31193      .0071
Si4   .8934   .2080 .02173      .0079
Oh1       0       0  .1229       .015
O2      2/3     1/3  .0793      .0107
Oh3   .1000   .6077 .07794      .0121
O4    .7246  -.0516 .19881      .0129
O5    .5871  -.2682 .14137      .0122
O6    .1729   .5100 .21832      .0104
O7    .2949   .0565 .19824      .0155
O8    .5135   .3478 .21654      .0106
O9    .4103   .2746 .14053      .0118
O10   .2600   .2371 .01397      .0134
O11   .5035   .1897 .01354      .0135
O12   .2654   .0464 .06664      .0136
H1        0       0   .141        .02
H2     .115    .610   .059        .02