Cordierite Wallace J H, Wenk H R American Mineralogist 65 (1980) 96-111 Structure variation in low cordierites Note: sample sci 1542 filter Locality: Passo di Mello, Bergell Alps, Switzerland _database_code_amcsd 0000764 17.044 9.716 9.334 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 .33739 0 .25 .886 .00037 .00120 .00175 0 0 -.00005 Fe1 .33739 0 .25 .068 .00037 .00120 .00175 0 0 -.00005 Al1 .25008 .25 .25010 .954 .00042 .00093 .00100 0.00016 0 0 Si2 0 .5 .25 .864 .00031 .00098 .00079 0 0 0 Al2 0 .5 .25 .096 .00031 .00098 .00079 0 0 0 Si3 .19252 .07796 0 .960 .00031 .00076 .00093 0.00001 0 0 Si4 .13517 -.23732 0 .958 .00033 .00083 .00098 -.00007 0 0 Al5 .05077 .30786 0 .913 .00033 .00099 .00106 0.00006 0 0 Si5 .05077 .30786 0 .048 .00033 .00099 .00106 0.00006 0 0 O1 .24723 -.10292 .35868 .00088 .00154 .00172 -.00011 0.00030 -.00026 O2 .06229 -.41627 .34908 .00059 .00221 .00185 -.00010 0.00011 -.00057 O3 -.17321 -.31005 .35851 .00076 .00193 .00185 0.00012 -.00030 -.00047 O4 .04305 -.24824 0 .00053 .00334 .00339 -.00015 0 0 O5 .12213 .18479 0 .00069 .00237 .00378 0.00063 0 0 O6 .16474 -.07956 0 .00102 .00127 .00387 -.00026 0 0 OH1 0 0 .25 .770 0.050 0.028 0.012 0 0 0 OH2 0 0 0 .080 -.001 -.004 0.320 0.00230 0 0