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American Mineralogist Crystal Structure Database

1 matching records for this search.

Grandaite
  
Camara F, Ciriotti M E, Bittarello E, Nestola F, Massimi F,
Radica F, Costa E, Benna P, Piccoli G C
  
Mineralogical Magazine 78 (2014) 757-774
Arsenic-bearing new mineral species from Valletta mine, Maira Valley, Piedmont,
Italy: I. Grandaite, Sr2Al(AsO4)2(OH), description and crystal structure
Locality: Valletta mine, Maira Valley, Piedmont, Italy
_database_code_amcsd 0020474
7.5764 5.9507 8.8050 90 112.551 90 P2_1/m
atom       x     y      z  occ   Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
SrA1  .25931   .25 .73723 .548 .01875  .0179  .0206  .0226      0 .01310      0
CaA2  .25931   .25 .73723 .452 .01875  .0179  .0206  .0226      0 .01310      0
SrA2  .67546   .25 .58860 .921 .01325 .01466 .01477 .01246      0 .00758      0
BaA2  .67546   .25 .58860 .079 .01325 .01466 .01477 .01246      0 .00758      0
AlM        0     0      0  .68  .0106  .0139  .0087  .0090 -.0004  .0039  .0000
MgM        0     0      0  .13  .0106  .0139  .0087  .0090 -.0004  .0039  .0000
Fe3+M      0     0      0  .14  .0106  .0139  .0087  .0090 -.0004  .0039  .0000
Mn3+M      0     0      0  .12  .0106  .0139  .0087  .0090 -.0004  .0039  .0000
AsT1  .43733   .25 .17111 .886 .01236 .01242 .01138 .01137      0 .00242      0
VT1   .43733   .25 .17111 .114 .01236 .01242 .01138 .01137      0 .00242      0
AsT2  .03113   .25 .33393 .884 .01032 .01242 .01054 .00925      0 .00556      0
VT2   .03113   .25 .33393 .116 .01032 .01242 .01054 .00925      0 .00556      0
O1     .0231 .5144  .7853       .0203  .0330  .0132  .0156  .0025  .0105  .0020
O2     .2635   .25  .4501       .0265  .0152  .0399  .0217      0  .0041      0
O3     .9109   .25  .4550       .0320  .0334  .0410  .0345      0  .0273      0
O4     .5055 .0223  .2905       .0197  .0226  .0153  .0177  .0017  .0039  .0026
O5     .5209   .25  .0207       .0391  .0413   .059  .0276      0  .0249      0
O6     .1923   .25  .0638       .0210  .0149  .0216  .0207      0  .0005      0
O7     .8303   .25  .9207       .0137  .0121  .0150  .0124      0  .0029      0
H7     .7043   .25  .9230       .0200


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