Milarite
Hawthorne F C, Kimata M, Cerny P, Ball N A, Rossman G R, Grice J D
American Mineralogist 76 (1991) 1836-1856
The crystal chemistry of the milarite-group minerals
sample #37 from Strange Lake
10.340 10.340 13.758 90 90 120 P6/mcc
atom      x     y      z  occ  Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
CaA     1/3   2/3  .2314 .345 .0084
YA      1/3   2/3  .2314 .155 .0084
NaB     1/3   2/3   .050 .005       0.0238 0.0238 0.0327 0.0119      0      0
KC        0     0    .25            0.0172 0.0172 0.0197 0.0086      0      0
Si1  .08085 .3380 .11262            0.0069 0.0095 0.0051 0.0041 -.0002 -.0011
Al2       0    .5    .25  .12       0.0058 0.0048 0.0032 0.0029      0      0
Be2       0    .5    .25  .88       0.0058 0.0048 0.0032 0.0029      0      0
O1    .0941 .3872      0            0.0315 0.0203 0.0042 0.0129      0      0
O2    .1959 .2776  .1327            0.0156 0.0234 0.0175 0.0157 -.0037 -.0044
O3    .1155 .4747  .1822            0.0108 0.0112 0.0088 0.0069 -.0002 -.0027