Omphacite Mottana A, Rossi G, Kracher A, Kurat G Tschermaks Mineralogische und Petrographische Mitteilungen 26 (1979) 187-201 Violan revisited: Mn-bearing omphacite and diopside Locality: manganese deposit of Praborna, St Marcel, Aosta Valley, Italy _database_code_amcsd 0015676 9.578 8.772 5.253 90 106.89 90 P2/n atom x y z occ Biso B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) Na2 .25 .5527 .25 .716 .85 .00356 .00235 .00520 0 .00051 0 Ca2 .25 .5527 .25 .284 .85 .00356 .00235 .00520 0 .00051 0 Ca22 .25 .9497 .75 .668 .73 .00324 .00143 .00438 0 -.00064 0 Na22 .25 .9497 .75 .332 .73 .00324 .00143 .00438 0 -.00064 0 Mg1 .25 .1583 .25 .936 .43 .00115 .00188 .00339 0 .00071 0 Fe1 .25 .1583 .25 .064 .43 .00115 .00188 .00339 0 .00071 0 Al11 .25 .3476 .75 .905 .44 .00157 .00154 .00316 0 .00063 0 Fe11 .25 .3476 .75 .095 .44 .00157 .00154 .00316 0 .00063 0 Si1 .5389 .3465 .2268 .39 .00139 .00142 .00305 -.00022 .00092 -.00010 Si2 .5372 .1615 .7301 .44 .00147 .00180 .00275 .00002 .00071 .00006 O11 .3635 .3372 .1234 .65 .00128 .00297 .00615 -.00022 .00105 -.00030 O12 .3612 .1756 .6461 .61 .00139 .00248 .00611 .00007 .00109 .00039 O21 .6134 .5085 .3084 .77 .00281 .00221 .0066 -.00067 .00101 -.00038 O22 .6064 .9976 .8051 .78 .00320 .00201 .0065 .00034 .00134 .00045 O31 .6052 .2655 .0032 .62 .00177 .00284 .00446 -.00047 .00127 -.00014 O32 .5989 .2393 .4974 .62 .00185 .00279 .00404 -.00065 .00097 .00132