Ardennite-(As) Nagashima M, Armbruster T Mineralogical Magazine 74 (2010) 55-71 Ardennite, tiragalloite and medaite: structural control of (As5+,V5+,Si4+)O4 tetrahedra in silicates Locality: Vernetto mine, Val Lanzo, Torino, Piedmont, Italy _database_code_amcsd 0019901 8.7452 5.8314 18.5891 90 90 90 *Pnmm 0 .25 .25 atom x y z occ Uiso U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3) MnA1 .94617 .25 .15546 .57 .01326 .0167 .0098 .0133 0 .00391 0 CaA1 .94617 .25 .15546 .43 .01326 .0167 .0098 .0133 0 .00391 0 MnA2 .39662 .75 .15995 .80 .01241 .0172 .0079 .0121 0 -.00152 0 CaA2 .39662 .75 .15995 .20 .01241 .0172 .0079 .0121 0 -.00152 0 AlM1 0 0 0 .878 .0080 .0084 .0058 .0097 .0003 .0008 .0000 FeM1 0 0 0 .122 .0080 .0084 .0058 .0097 .0003 .0008 .0000 AlM2 .5 0 0 .00810 .0088 .0058 .0097 -.0003 .0003 -.0004 MgM3 .68069 -.00158 .25 .54 .0086 .0109 .0054 .0096 -.0002 0 0 AlM3 .68069 -.00158 .25 .279 .0086 .0109 .0054 .0096 -.0002 0 0 MnM3 .68069 -.00158 .25 .181 .0086 .0109 .0054 .0096 -.0002 0 0 SiT1 .76328 .75 .09619 .00791 .0075 .0070 .0093 0 .0000 0 SiT2 .27823 .25 .09517 .00858 .0085 .0071 .0102 0 -.0002 0 SiT3 .34387 .25 .25 .0090 .0109 .0058 .0102 0 0 0 AsT4 .04264 .75 .25 .730 .00988 .0115 .0057 .0124 0 0 0 SiT4 .04264 .75 .25 .270 .00988 .0115 .0057 .0124 0 0 0 O1 .13036 .0263 -.08177 .0103 .0109 .0071 .0129 -.0010 .0015 -.0011 O2 .62384 -.0193 -.08283 .0102 .0107 .0073 .0125 .0005 .0016 .0001 O3 .1113 .25 .05398 .0124 .0101 .0148 .0125 0 -.0012 0 O4 .6163 .75 .04145 .0102 .0099 .0079 .0128 0 -.0017 0 O5 .9287 -.0117 .25 .0155 .0145 .0089 .0231 .0033 0 0 O6 .4435 .0122 .25 .0128 .0162 .0068 .0155 .0025 0 0 O7 .6795 .75 .17642 .0130 .0124 .0145 .0120 0 .0022 0 O8 .2258 .25 .18087 .0115 .0123 .0122 .0099 0 .0007 0 O9 .1502 .75 .17743 .0162 .0169 .0163 .0153 0 .0004 0 O10 .1118 .75 .03336 .0105 .0082 .0106 .0126 0 -.0007 0 O11 .6139 .25 .03572 .0100 .0081 .0090 .0128 0 .0006 0 O12 .6979 .25 .18221 .0126 .0127 .0138 .0114 0 .0010 0 H10 .123 .75 .0857 .05 H11 .715 .25 .014 .05 H12 .657 .25 .1332 .05