Osumilite
Balassone G, Mormone A, Rossi M, Bernardi A, Fisch M, Armbruster T, Malsy K, Berger A
European Journal of Mineralogy 20 (2008) 713-720
Crystal chemical and structural characterization of an Mg-rich osumilite from
Vesuvius volcano (Italy)
Locality: Vesuvius volcano, Italy
_database_code_amcsd 0007263
10.0946 10.0946 14.3311 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)
KC        0      0    .25 .811  .0311  .0303  .0303  .0326  .0152       0       0
NaB'    2/3    1/3   .018 .013   .010
AlT2     .5      0    .75 .967  .0100  .0055  .0140  .0077 .00273       0       0
FeT2     .5      0    .75 .033  .0100  .0055  .0140  .0077 .00273       0       0
FeA     2/3    1/3    .25 .007  .0076  .0070  .0070  .0089  .0035       0       0
MgA     2/3    1/3    .25 .993  .0076  .0070  .0070  .0089  .0035       0       0
SiT1 .89434 .24754 .10800      .00931  .0091  .0098  .0077 .00369 -.00004 -.00140
O1    .8770  .2839      0       .0197  .0275  .0268  .0081  .0159       0       0
O2   .78301 .06764 .13184       .0241  .0268  .0130  .0237  .0033  -.0005  -.0023
O3   .85950 .35319 .17868       .0139  .0157  .0129  .0116  .0060   .0028  -.0016