Luneburgite
Sen Gupta P K, Swihart G H, Dimitrijevic R, Hossain M B
American Mineralogist 76 (1991) 1400-1407
The crystal structure of luneburgite, Mg3(H2O)6[B2(OH)6(PO4)2]
Locality: Bela Stena, Serbia, Yugoslavia
_database_code_amcsd 0001396
6.3475 9.8027 6.2976 84.46 106.40 96.40 P-1
atom       x      y       z Biso U(1,1) U(2,2) U(3,3)  U(1,2) U(1,3)  U(2,3)
Mg1        0      0       0      0.0118 0.0083 0.0100  .00129 .00069 -.00205
Mg2   .33887 .66623 -.31919      .00873 .01036 .00676 -.00013 .00242 -.00095
P     .24078 .72309  .13711      .00823 .00785 .00529  .00073 .00133 -.00070
B    -.12248 .71136 -.22907      0.0070 0.0077 0.0076 -0.0001 0.0010 -0.0021
O1    .22712 .87371  .17200      0.0149 0.0085 0.0110  0.0018 -.0006 -0.0027
O2    .41127 .71210  .01082      0.0107 0.0178 0.0089  0.0010 0.0038 -0.0019
O3    .28952 .63511  .35400      0.0154 0.0104 0.0061  0.0024 0.0016 -0.0003
O4    .00992 .66280 -.00409      0.0090 0.0123 0.0074 -0.0012 -.0008  0.0005
O5   -.15042 .85815 -.22787      0.0115 0.0092 0.0164  0.0015 -.0009 -0.0026
O6    .00028 .69116 -.38998      0.0107 0.0190 0.0108 -0.0014 0.0042 -0.0055
O7   -.33537 .63179 -.27715      0.0073 0.0096 0.0142 -0.0014 0.0023 -0.0036
O8   -.21919 .91168  .20918      0.0196 0.0185 0.0187 -0.0012 0.0076 -0.0006
O9    .39704 .87847 -.39107      0.0163 0.0118 0.0105  0.0009 0.0021 -0.0010
O10   .26772 .45615 -.24132      0.0123 0.0136 0.0128  0.0009 0.0045  0.0022
H1     .2779  .1276   .2859 3.16
H2     .0780  .3599   .4879 3.16
H3     .3240  .4464   .3051 3.16
H4     .6657  .8588   .1447 3.16
H5     .8506  .8667   .3066 3.16
H6     .6524  .0656   .3362 3.16
H7     .3435  .8946   .4792 3.16
H8     .8233  .5581   .1717 3.16
H9     .6279  .5878   .1793 3.16