Biotite Bigi S, Brigatti M F American Mineralogist 79 (1994) 63-72 Crystal chemistry and microstructures of plutonic biotite Sample 1M from Valle del Cervo syenitic complex _database_code_amcsd 0001633 5.335 9.244 10.206 90 100.08 90 C2/m atom x y z occ B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) SiT .0752 .1669 .2258 .702 .0161 .0038 .0052 -.0002 .0021 .0001 AlT .0752 .1669 .2258 .298 .0161 .0038 .0052 -.0002 .0021 .0001 Al1 0 0 .5 .015 .0172 .0038 .0067 0 .0036 0 Fe1 0 0 .5 .400 .0172 .0038 .0067 0 .0036 0 Mg1 0 0 .5 .512 .0172 .0038 .0067 0 .0036 0 Mn1 0 0 .5 .007 .0172 .0038 .0067 0 .0036 0 Ti1 0 0 .5 .067 .0172 .0038 .0067 0 .0036 0 Na2 0 .3343 .5 .017 .0160 .0044 .0060 0 .0028 0 K2 0 .3343 .5 .953 .0160 .0044 .0060 0 .0028 0 O1 .0247 0 .1688 .0306 .0047 .0071 0 .0021 0 O2 .3219 .2336 .1683 .0212 .0088 .0066 -.0022 .0034 -.0006 O3 .1334 .1675 .3905 .0197 .0044 .0061 .0000 .0029 .0004 O4 .1301 .5 .3952 .0198 .0053 .0064 0 .0027 0