Esseneite
Cosca M A, Peacor D R
American Mineralogist 72 (1987) 148-156
Chemistry and structure of esseneite (CaFeAlSiO6), a new pyroxene
produced by pyrometamorphism
_database_code_amcsd 0001063
9.79 8.822 5.37 90 105.81 90 C2/c
atom     x     y     z occ B(1,1) B(2,2) B(3,3)  B(1,2) B(1,3)  B(2,3)
Fe1      0 .0942   .75 .58 .00121 .00101 .00575       0 .00054       0
Al1      0 .0942   .75 .42 .00121 .00101 .00575       0 .00054       0
Ca2      0 .6918   .75 .97 .00304 .00238 .00942       0 .00122       0
Fe2      0 .6918   .75 .03 .00304 .00238 .00942       0 .00122       0
SiT  .2117 .4057 .7764 .54 .00070 .00059 .00458 -.00017 .00057 -.00040
AlT  .2117 .4057 .7764 .46 .00070 .00059 .00458 -.00017 .00057 -.00040
O1   .3888 .4123 .8659     .00295 .00310 .00901 -.00008 .00167  .00040
O2   .1366 .2411 .6799     .00392 .00410 .00973 -.00027 .00206  .00020
O3   .1468 .4802 .0124     .00300 .00330 .01474  .00011 .00188 -.00060