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: MS5 Note: 1M polytype _database_code_amcsd 0004298 5.3314 9.2290 10.1801 90 100.051 90 C2/m 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 .5 0 .93 .031 .029 .029 .037 0 .007 0 NaA 0 .5 0 .07 .031 .029 .029 .037 0 .007 0 MgM1 0 0 .5 .49 .013 .010 .008 .020 0 .005 0 Fe2+M1 0 0 .5 .38 .013 .010 .008 .020 0 .005 0 TiM1 0 0 .5 .08 .013 .010 .008 .020 0 .005 0 AlM1 0 0 .5 .05 .013 .010 .008 .020 0 .005 0 MgM2 0 .3381 .5 .49 .014 .009 .015 .018 0 .002 0 Fe2+M2 0 .3381 .5 .38 .014 .009 .015 .018 0 .002 0 TiM2 0 .3381 .5 .08 .014 .009 .015 .018 0 .002 0 AlM2 0 .3381 .5 .05 .014 .009 .015 .018 0 .002 0 AlT .0745 .1671 .2245 .32 .011 .009 .009 .014 0 .003 0 SiT .0745 .1671 .2245 .68 .011 .009 .009 .014 0 .003 0 O1 .3277 .2274 .1673 .020 .017 .023 .021 -.004 .005 -.003 O2 .0108 0 .1692 .021 .024 .016 .024 0 .002 0 O3 .1306 .1684 .3910 .014 .012 .012 .017 0 .003 0 O4 .1330 .5 .3994 .014 .012 .012 .017 0 .002 0