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American Mineralogist Crystal Structure Database

1 matching records for this search.

Holtstamite
  
Halenius U, Haussermann U, Harryson H
  
European Journal of Mineralogy 17 (2005) 375-382
Holtstamite, Ca3(Al,Mn3+)2(SiO4)3-x(H4O4)x, a new tetragonal hydrogarnet
from Wessels Mine, South Africa
Locality: Wessels Mine, South Africa
_database_code_amcsd 0007101
12.337 12.337 11.930 90 90 90 *I4_1/acd
.5 .25 .125
atom      x     y     z  occ  Uiso
CaA1  .3658     0   .25      .0137
CaA2      0   .25  .125      .0151
Mn3+B     0     0     0 .503 .0106
AlB       0     0     0 .497 .0106
Si1   .1180     0   .25  .92 .0106
Si2      .5   .25  .125  .11  .019
O1    .2930 .7167 .0979      .0165
O2    .1556 .5500 .0494      .0189
O3    .4442 .3586 .0222      .0186
H      .453  .333  .082        .04


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