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Re-determination of the crystal structure of heyrovskyite

Posted by Jim Ferraiolo  
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Jim Ferraiolo July 30, 2012 12:25PM
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 and I. V. Chaplygin
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, d x = 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.

Journal of Structural Chemistry Volume 53(3) (2012), 588-592,
Translated from Zhurnal Strukturnoi Khimii, Vol. 53, No. 3, pp. 593–597, May–June, 2012

(sorry, abstract only. I don't have the article).
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