Hg3S2Cl1.5Br.5 Pervukhina N V, Vasil'ev V I, Magarill S A, Borisov S V, Naumov D Y The Canadian Mineralogist 44 (2006) 1239-1246 Crystal chemistry of mercury sulfohalides of composition Hg3S2Hal2 (Hal: Cl,Br). I. Crystal structures of two polymorphic modifications of Hg3S2Cl2-xBrx (x ~ 0.5) Sample: compound I _database_code_amcsd 0006123 16.841 9.128 9.435 90 90.08 90 C2/m atom x y z occ Uiso Hg1 .5 -.2412 .5 .028 Hg2 .3749 -.2252 .7993 .023 Hg3 .2225 -.5 .7699 .035 Hg4 .25 -.25 .5 .029 Hg5 .5265 -.5 .7774 .034 S1 .5147 -.2361 .7564 .026 S2 .2303 -.2403 .7487 .033 Cl1 .1315 -.5 .0150 .032 Cl2 .6255 -.5 .0161 .034 Br1 .3734 0 .5175 .625 .042 Cl3 .3734 0 .5175 .375 .042 Br2 .3736 -.5 .5274 .623 .035 Cl4 .3736 -.5 .5274 .377 .035