NaAl2(AlSi3)O11
Comodi P, Zanazzi P F
Physics and Chemistry of Minerals 27 (2000) 377-385
Structural thermal behavior of paragonite and its dehydroxylate:
a high-temperature single-crystal study
Sample: Dehydroxylate phase at T = 25 C
_database_code_amcsd 0008411
5.182 9.117 19.550 90 92.70 90 C2/c
atom     x     y     z occ  Uiso
Na       0 .0909   .25      .082
AlM2 .2774 .0937 .0002     .0228
AlT1 .9414 .4308 .1415 .25 .0232
SiT1 .9414 .4308 .1415 .75 .0232
AlT2 .4192 .2547 .1414 .25 .0250
SiT2 .4192 .2547 .1414 .75 .0250
O1   .9784 .4616 .0586      .025
O2   .3360 .2443 .0585      .027
O3   .3674 .0909 .1755      .030
O4   .7212 .3053 .1574      .034
O5   .2230 .3746 .1769      .030
Or       0     0     0      .055