Re-DETERMINATION OF the CRYSTAL STRUCTURE OF heyrovskyite MINERAL Pb6Bi2S9 (KUDRYAVYI volcano, ITURUP ISLAND, Kurils, RUSSIA)
N. V. Pervukhina, S. V. Borisov, S. A. Magarill, N. V. Kuratieva, N. N. Mozgova, I. V. Chaplygin
Keywords: heyrovskyite, Pb-Bi sulfosalts, tablet structures, isomorphism Pb/Bi, crystal structure
Pages: 593-597
Abstract
Heyrovskyite mineral Pb6Bi2S9 from fumarole exhalations of the Kudryavyi volcano (Iturup island, Kurils, Russia) is studied by X-ray crystallography (Bruker Nonius X8 Apex with a 4K CCD detector, R = 0.0405). Unit cell parameters are: a = 4.1457(1) Å, b = 13.7421(5) Å, c = 31.5005(12) Å, V = 1794.6(1) Å3, Z = 4, dx = 7.216 g/cm3, Cmcm space group, R=0.0405. The resulted structure is similar to the known structures of heyrovskyites from other deposits with some variation in the cation composition.
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