Cordierite
Armbruster T
Physics and Chemistry of Minerals 12 (1985) 233-245
Ar, N2, CO2 in the structural cavities of cordierite,
an optical and X-ray single-crystal study
Sample: White Well CO2
_database_code_amcsd 0007367
17.062 9.722 9.356 90 90 90 Cccm
atom          x       y      z  occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
O11      .24739 -.10309 .35886       .0097  .0070  .0070 -.0007  .0029 -.0010
O16      .06233 -.41610 .34913       .0066  .0091  .0073 -.0010  .0002 -.0030
O13     -.17330 -.31015 .35852       .0083  .0080  .0074  .0015 -.0018 -.0019
O26      .04310 -.24773      0       .0050  .0146  .0149 -.0018      0      0
O21      .12237  .18490      0       .0100  .0097  .0155  .0052      0      0
O23      .16465 -.07953      0       .0120  .0053  .0162 -.0029      0      0
AlT11       .25     .25 .25017       .0071  .0052  .0054  .0012      0      0
SiT16         0      .5    .25       .0047  .0058  .0047      0      0      0
SiT21    .19261  .07809      0       .0049  .0037  .0050  .0002      0      0
SiT23   -.13523  .23724      0       .0044  .0043  .0051 -.0007      0      0
AlT26    .05091  .30805      0       .0043  .0052  .0052  .0006      0      0
MgM      .33730       0    .25 .955  .0063  .0064  .0084      0      0  .0000
FeM      .33730       0    .25 .045  .0063  .0064  .0084      0      0  .0000
MnM      .33730       0    .25 .005  .0063  .0064  .0084      0      0  .0000
NaChO         0       0    .25  .05    .03    .03    .04      0      0      0
CCh1/4        0       0    .25  .45   .044   .048   .049      0      0      0
OCh1/4a   .0616       0    .25  .45    .18    .39    .09      0      0   -.05