Manganocolumbite Tarantino S C, Zema M, Pistorino M, Domeneghetti M C Physics and Chemistry of Minerals 30 (2003) 590-598 High-temperature X-ray investigation of natural columbites Note: sample KRA5 at T = 20 C Locality: Kragero, Norway _database_code_amcsd 0008839 14.3860 5.7478 5.0797 90 90 90 Pbcn atom x y z occ Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) Mn2+A 0 .3197 .25 .792 .0069 .0063 .0082 .0061 0 .0003 0 Fe2+A 0 .3197 .25 .138 .0069 .0063 .0082 .0061 0 .0003 0 Ti4+A 0 .3197 .25 .077 .0069 .0063 .0082 .0061 0 .0003 0 Nb5+B .1626 .1796 .7391 .897 .0072 .0082 .0062 .0071 .0002 .0005 -.0001 Ta5+B .1626 .1796 .7391 .083 .0072 .0082 .0062 .0071 .0002 .0005 -.0001 Ca2+B .1626 .1796 .7391 .0045 .0072 .0082 .0062 .0071 .0002 .0005 -.0001 Sn4+B .1626 .1796 .7391 .0015 .0072 .0082 .0062 .0071 .0002 .0005 -.0001 Sc3+B .1626 .1796 .7391 .001 .0072 .0082 .0062 .0071 .0002 .0005 -.0001 W6+B .1626 .1796 .7391 .0005 .0072 .0082 .0062 .0071 .0002 .0005 -.0001 O1 .0984 .0985 .0576 .0088 .0104 .0073 .0088 .0011 .0015 .0019 O2 .0827 .3836 .5969 .0101 .0111 .0089 .0103 .0014 .0011 -.0004 O3 .2437 .1259 .4100 .0080 .0092 .0059 .0091 -.0003 .0016 -.0014