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: MS13 Note: 1M polytype _database_code_amcsd 0004304 5.3399 9.2483 10.1688 90 100.217 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 .032 .029 .039 0 .006 0 NaA 0 .5 0 .07 .033 .032 .029 .039 0 .006 0 MgM1 0 0 .5 .5 .013 .012 .009 .019 0 .004 0 Fe2+M1 0 0 .5 .37 .013 .012 .009 .019 0 .004 0 TiM1 0 0 .5 .13 .013 .012 .009 .019 0 .004 0 MgM2 0 .3389 .5 .5 .014 .010 .015 .017 0 .002 0 Fe2+M2 0 .3389 .5 .37 .014 .010 .015 .017 0 .002 0 TiM2 0 .3389 .5 .13 .014 .010 .015 .017 0 .002 0 AlT .0745 .1672 .2242 .29 .007 .007 .006 .009 0 0 -.001 SiT .0745 .1672 .2242 .71 .007 .007 .006 .009 0 0 -.001 O1 .3184 .2357 .1662 .021 .020 .024 .019 -.006 .004 -.002 O2 .0277 0 .1680 .021 .030 .012 .021 0 .001 0 O3 .1308 .1692 .3907 .011 .010 .009 .014 .002 .001 -.002 O4 .1303 .5 .3983 .012 .010 .011 .015 0 .001 0