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: MS9 Note: 1M polytype _database_code_amcsd 0004294 5.3304 9.2277 10.1918 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 .9 .033 .032 .028 .037 0 .006 0 NaA 0 .5 0 .06 .033 .032 .028 .037 0 .006 0 MgM1 0 0 .5 .45 .013 .014 .009 .018 0 .004 0 Fe2+M1 0 0 .5 .40 .013 .014 .009 .018 0 .004 0 TiM1 0 0 .5 .09 .013 .014 .009 .018 0 .004 0 AlM1 0 0 .5 .06 .013 .014 .009 .018 0 .004 0 MgM2 0 .3391 .5 .45 .014 .012 .014 .016 0 .001 0 Fe2+M2 0 .3391 .5 .40 .014 .012 .014 .016 0 .001 0 TiM2 0 .3391 .5 .09 .014 .012 .014 .016 0 .001 0 AlM2 0 .3391 .5 .06 .014 .012 .014 .016 0 .001 0 AlT .0743 .1672 .2248 .19 .010 .010 .008 .012 0 .002 0 SiT .0743 .1672 .2248 .71 .010 .010 .008 .012 0 .002 0 O1 .3266 .2289 .1675 .020 .019 .024 .018 -.006 .004 -.004 O2 .0134 0 .1694 .020 .030 .012 .016 0 0 0 O3 .1302 .1689 .3912 .013 .015 .011 .012 0 .002 0 O4 .1334 .5 .3993 .014 .014 .014 .014 0 .003 0