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: MS1 Note: 2M_1 polytype _database_code_amcsd 0004291 5.3332 9.2376 20.069 90 95.125 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 .93 .035 .032 .032 .041 0 .003 0 NaA 0 .0842 .25 .07 .035 .032 .032 .041 0 .003 0 MgM1 .75 .25 0 .5 .012 .010 .009 .018 .001 .003 -.002 Fe2+M1 .75 .25 0 .37 .012 .010 .009 .018 .001 .003 -.002 TiM1 .75 .25 0 .13 .012 .010 .009 .018 .001 .003 -.002 MgM2 .2404 .0801 .0000 .5 .014 .015 .011 .017 .004 .002 0 Fe2+M2 .2404 .0801 .0000 .37 .014 .015 .011 .017 .004 .002 0 TiM2 .2404 .0801 .0000 .13 .014 .015 .011 .017 .004 .002 0 AlT1 .4619 .2501 .1381 .3 .010 .010 .008 .012 .001 .001 0 SiT1 .4619 .2501 .1381 .7 .010 .010 .008 .012 .001 .001 0 AlT2 .9637 .4174 .1380 .3 .010 .009 .008 .012 .001 .002 0 SiT2 .9637 .4174 .1380 .7 .010 .009 .008 .012 .001 .002 0 O11 .7371 .3192 .1660 .022 .020 .028 .019 -.007 -.001 .001 O21 .2369 .3483 .1671 .022 .020 .027 .019 .006 -.001 -.002 O22 .4436 .0837 .1670 .023 .032 .017 .019 .001 .004 .001 O31 .4302 .2495 .0546 .014 .015 .013 .015 .001 .001 0 O32 .9382 .4188 .0547 .014 .013 .014 .015 .002 .002 .001 O41 .9343 .0825 .0504 .014 .013 .010 .018 .003 .001 .001