Tillmannsite Sarp H, Pushcharovsky D Y, MacLean E J, Teat S J, Zubkova N V European Journal of Mineralogy 15 (2003) 177-180 Tillmannsite, (Ag3Hg)(V,As)O4, a new mineral: its description and crystal structure _database_code_amcsd 0006963 7.727 7.727 4.648 90 90 90 I-4 atom x y z occ Biso Ag .5707 .6624 .2896 .7525 2.01 Hg .5707 .6624 .2896 .2475 2.01 V .5 0 .75 .68 1.5 As .5 0 .75 .36 1.5 O .659 .9159 .548 1.8