Phlogopite
Laurora A, Brigatti M F, Mottana A, Malferrari D, Caprilli E
American Mineralogist 92 (2007) 468-480
Crystal chemistry of trioctahedral micas in alkaline and subalkaline volcanic
rocks: A case study from Mt. Sassetto (Tolfa district, Latium, central Italy)
Locality: Mt. Sassetto, Tolfa district, Latium, Italy
Sample: MS4
Note: 2M_1 polytype
_database_code_amcsd 0004293
5.3368 9.2377 20.086 90 95.128 90 C2/c
atom       x     y     z occ Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
KA         0 .0842   .25 .89 .036   .033   .033   .040      0   .004      0
NaA        0 .0842   .25 .07 .036   .033   .033   .040      0   .004      0
MgM1     .75   .25     0  .5 .014   .012   .011   .018   .002   .002   .001
Fe2+M1   .75   .25     0 .37 .014   .012   .011   .018   .002   .002   .001
TiM1     .75   .25     0 .13 .014   .012   .011   .018   .002   .002   .001
MgM2   .2400 .0800 .0000  .5 .015   .017   .012   .016   .006   .002   .002
Fe2+M2 .2400 .0800 .0000 .37 .015   .017   .012   .016   .006   .002   .002
TiM2   .2400 .0800 .0000 .13 .015   .017   .012   .016   .006   .002   .002
AlT1   .4620 .2503 .1380 .28 .010   .010   .009   .012      0   .001      0
SiT1   .4620 .2503 .1380 .72 .010   .010   .009   .012      0   .001      0
AlT2   .9639 .4175 .1380 .28 .010   .009   .009   .012   .001   .001      0
SiT2   .9639 .4175 .1380 .72 .010   .009   .009   .012   .001   .001      0
O11    .7370 .3190 .1661     .021   .019   .027   .016  -.006   .001   .002
O21    .2366 .3479 .1671     .021   .020   .026   .017   .006   .001  -.001
O22    .4447 .0833 .1672     .021   .030   .016   .018  -.001   .005      0
O31    .4301 .2499 .0546     .013   .015   .013   .012   .001   .002   .003
O32    .9384 .4192 .0549     .013   .013   .014   .012   .002   .002   .003
O41    .9342 .0828 .0501     .013   .014   .012   .013   .004   .002   .003