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: MS11 Note: 1M polytype _database_code_amcsd 0004302 5.3420 9.2461 10.1635 90 100.219 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 .033 .031 .031 .036 0 .006 0 NaA 0 .5 0 .07 .033 .031 .031 .036 0 .006 0 MgM1 0 0 .5 .5 .012 .010 .010 .016 0 .004 0 Fe2+M1 0 0 .5 .37 .012 .010 .010 .016 0 .004 0 TiM1 0 0 .5 .13 .012 .010 .010 .016 0 .004 0 MgM2 0 .3393 .5 .5 .013 .009 .017 .013 0 .002 0 Fe2+M2 0 .3393 .5 .37 .013 .009 .017 .013 0 .002 0 TiM2 0 .3393 .5 .13 .013 .009 .017 .013 0 .002 0 AlT .0743 .1672 .2239 .28 .010 .009 .009 .010 0 .002 0 SiT .0743 .1672 .2239 .72 .010 .009 .009 .010 0 .002 0 O1 .3194 .2351 .1658 .019 .017 .026 .015 -.007 .004 -.003 O2 .0254 0 .1677 .020 .028 .014 .014 0 .001 0 O3 .1310 .1691 .3905 .012 .012 .013 .011 0 .002 -.001 O4 .1305 .5 .3992 .012 .010 .014 .012 0 .002 0