Ludlamite Ito T, Mori H Acta Crystallographica 4 (1951) 412-416 The crystal structure of ludlamite Locality: Ashio, Japan _database_code_amcsd 0009144 10.45 4.65 9.25 90 90. 90 P2_1/a atom x y z Fe1 0 0 0 Fe2 .170 .08 .328 P .455 .96 .233 O1 .036 .82 .198 O2 .408 .19 .102 O3 .325 .86 .290 O4 .035 .38 .360 Wat1 .162 .27 .112 Wat2 .332 .38 .446