Fluoro-potassic-magnesio-arfvedsonite Oberti R, Boiocchi M, Hawthorne F C, Robinson P Mineralogical Magazine 74 (2010) 951-960 Crystal structure and crystal chemistry of fluoro-potassic-magnesio-arfvedsonite from Monte Metocha, Xixano region, Mozambique, and discussion of the holotype from Quebec, Canada Locality: Monte Metocha, Xixano region, Mozambique _database_code_amcsd 0018304 9.9591 17.9529 5.2867 90 104.340 90 C2/m atom x y z occ Biso B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) KAm .0313 .5 .0701 .49 1.59 .0056 .0010 .0195 0 .0079 0 NaM4 0 .2775 .5 .905 1.35 .0043 .0008 .0164 0 .0048 0 CaM4 0 .2775 .5 .095 1.35 .0043 .0008 .0164 0 .0048 0 MgM1 0 .0894 .5 .77 .76 .0022 .0007 .0063 0 .0013 0 Fe2+M1 0 .0894 .5 .17 .76 .0022 .0007 .0063 0 .0013 0 TiM1 0 .0894 .5 .06 .76 .0022 .0007 .0063 0 .0013 0 Fe3+M2 0 .1825 0 .450 .57 .0016 .0004 .0055 0 .0008 0 MgM2 0 .1825 0 .340 .57 .0016 .0004 .0055 0 .0008 0 Fe2+M2 0 .1825 0 .200 .57 .0016 .0004 .0055 0 .0008 0 AlM2 0 .1825 0 .005 .57 .0016 .0004 .0055 0 .0008 0 ZnM2 0 .1825 0 .005 .57 .0016 .0004 .0055 0 .0008 0 MgM3 0 0 0 .87 .58 .0020 .0004 .0046 0 .0006 0 Fe2+M3 0 0 0 .09 .58 .0020 .0004 .0046 0 .0006 0 MnM3 0 0 0 .04 .58 .0020 .0004 .0046 0 .0006 0 SiT1 .2758 .0858 .2976 .47 .0014 .0004 .0041 0 .0006 -.0001 SiT2 .2853 .1714 .8040 .47 .0014 .0004 .0041 -.0001 .0007 -.0001 O1 .1098 .0877 .2161 .67 .0014 .0006 .0064 -.0001 .0008 -.0001 O2 .1181 .1696 .7305 .68 .0016 .0006 .0063 0 .0006 -.0001 F3 .1048 0 .7119 .515 .90 .0026 .0007 .0080 0 .0009 0 O3 .1048 0 .7119 .485 .90 .0026 .0007 .0080 0 .0009 0 O4 .3608 .2491 .8014 .89 .0031 .0005 .0080 -.0005 .0015 -.0001 O5 .3441 .1284 .0886 .76 .0019 .0008 .0062 0 .0012 .0008 O6 .3393 .1189 .5877 .79 .0022 .0007 .0054 0 .0008 -.0007 O7 .3307 0 .3056 .84 .0024 .0004 .0114 0 .0016 0 H .188 0 .740 .365 .80