Cordierite Wallace J H, Wenk H R American Mineralogist 65 (1980) 96-111 Structure variation in low cordierites Note: sample sci 1104 Locality: SW Mte. Rosso, Bergell Alps, Switzerland _database_code_amcsd 0000768 17.098 9.741 9.319 90 90 90 Cccm atom x y z occ B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) Mg1 .33735 0 .25 .581 .00028 .00118 .00174 0 0 0.00002 Fe1 .33735 0 .25 .366 .00028 .00118 .00174 0 0 0.00002 Al1 .25 .25 .25002 .969 .00043 .00128 .00110 0.00014 0 0 Si2 0 .5 .25 .881 .00035 .00128 .00097 0 0 0 Al2 0 .5 .25 .098 .00035 .00128 .00097 0 0 0 Si3 .19150 .078530 0 .967 .00031 .00090 .00096 0.00003 0 0 Si4 .13506 -.23592 0 .962 .00027 .00096 .00089 -.00011 0 0 Al5 .05024 .307510 0 .906 .00024 .00133 .00096 0.00009 0 0 Si5 .05024 .307510 0 .048 .00024 .00133 .00096 0.00009 0 0 O1 .24584 -.10367 .35849 .00083 .00175 .00187 0.00000 0.00038 -.00012 O2 .06148 -.41534 .34882 .00063 .00246 .00170 -.00017 0.00003 -.00067 O3 -.17319 -.30796 .35827 .00059 .00224 .00190 0.00019 -.00024 -.00047 O4 .04344 -.24735 0 .00052 .00358 .00415 -.00012 0 0 O5 .12149 .18412 0 .00088 .00261 .00366 0.00064 0 0 O6 .16373 -.07855 0 .00096 .00198 .00355 -.00034 0 0 OH1 0 0 .25 .65 .0280 .024 .017 0 0 0 OH2 0 0 0 .12 .0003 .003 .004 0 0 0