Kumtyubeite
Galuskina I O, Lazic B, Armbruster T, Galuskin E V, Gazeev V M, Zadov A E,
Pertsev N N, Jezak L, Wrzalik R, Gurbanov A G
American Mineralogist 94 (2009) 1361-1370
Kumtyubeite Ca5(SiO4)2F2 - A new calcium mineral of the humite group from
Northern Caucasus, Kabardino-Balkaria, Russia
Locality: Northern Caucasus, Kabardino-Balkaria, Russia
_database_code_amcsd 0004983
11.44637 5.05135 8.85234 90 108.8625 90 P2_1/a
atom      x      y      z occ   Uiso U(1,1) U(2,2) U(3,3)  U(1,2) U(1,3)  U(2,3)
Ca1      .5      0     .5     .00872 .00913 .00746 .00819 -.00112 .00090 -.00114
Ca2  .16958 .00430 .30946     .00788 .00735 .00832 .00829  .00047 .00295 -.00020
Ca3  .38125 .00820 .07805     .00829 .00878 .00876 .00740 -.00004 .00269  .00086
Si1  .35382 .57472 .29754     .00617 .00674 .00521 .00647  .00006 .00201 -.00006
O1   .48464 .70458 .29303     .00864  .0075  .0088  .0098  -.0001  .0031  -.0002
O2   .24752 .70644 .14423     .00875  .0086  .0087  .0078   .0002  .0010   .0007
O3   .33001 .70447 .45559     .00855  .0099  .0085  .0077   .0004  .0035  -.0003
O4   .35279 .25353 .29649     .00938  .0107  .0061  .0113   .0000  .0035  -.0001
O5    .0466  .2161  .0743  .3  .0130
F5   .05554  .2581 .09880  .7  .0130
H      .015   .052   .024  .3   .050