Hostname: page-component-586b7cd67f-2plfb Total loading time: 0 Render date: 2024-11-28T16:13:58.377Z Has data issue: false hasContentIssue false
  • English
  • Français

The crystal structure of klyuchevskite, K3Cu3(Fe,Al)O2(SO4)4, a new mineral from Kamchatka volcanic sublimates

Published online by Cambridge University Press:  05 July 2018

M. G. Gorskaya ,
S. K. Filatov ,
I. V. Rozhdestvenskaya  and
L. P. Vergasova
M. G. Gorskaya
Affiliation:
State University, Russia
S. K. Filatov
Affiliation:
State University, Russia
I. V. Rozhdestvenskaya
Affiliation:
LPO 'Burevestnik', Russia
L. P. Vergasova
Affiliation:
St.-Petersburg Institute of Volcanology, Academy of Sciences, Petropavlovsk-Kamchatsky, Russia
Get access Rights & Permissions [Opens in a new window]

Abstract

The crystal structure of klyuchevskite, K3Cu3(Fe,Al)O2(SO4)4, was determined in space group I2 using the total of 715 independent reflections up to R 0.12. Klyuchevskite is a structural analogue of piypite (caratiite) K4Cu4O2(SO4)4MeCl with the substitution K+ + Cu2+ → (Fe3+,Al) + MeCl. Compared to piypite, the ordering of Cu2+ and Fe3+ cations in the klyuchevskite structure results in the distortion of the unit cell and in lowering the symmetry of the chains to 1.

This brings about a more compact packing of the chains. The chain-like arrangement of the structure determines physical properties of the mineral, its acicular habit, perfect cleavage, strong anisotropy of optical properties and orientation of optical indicatrix.

Keywords

klyuchevskitecrystal structurepiypiteTolbachik volcanoRussia
Type
Crystal Structures
Information
Mineralogical Magazine , Volume 56 , Issue 384 , September 1992 , pp. 411 - 416
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1992

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Clark, A.M., Fejer, E.E., and Couper, A.G. (1984) Mineral. Mag., 48, 537–9.CrossRefGoogle Scholar
Effenberger, H. (1985a) Monatshefte fiir Chemie, 116, 927–31.CrossRefGoogle Scholar
Effenberger, H. (1985b) Mitt. Osterr. Miner. Ges., 130, 29–31.Google Scholar
Effenberger, H. and Zemann, J. (1984) Mineral. Mag., 48, 541–6.CrossRefGoogle Scholar
Filatov, S.K. and Vergasova, L.P. (1989) Zapisky VMO, 118(3), 88–90 (in Russian).Google Scholar
Vergasova, L.P., Filtov, S.K., Serafimova, E.K., Starova, G.L. (1984) Dokl. Akad. Nauk, 275, 714–17.(in Russian).Google Scholar
Vergasova, L.P., Filtov, S.K., Serafimova, E.K., Starova, G.L. Filatov, S.K., Gorskaya, M.G., Ananiev, V.V., and Sharov, A.S. (1989) Zapisky VMO, 118 (1), 70-5 (in Russian).Google Scholar
Walker, N. and Stuart, D. (1983) Acta Crystallogr., A39, 158-65.Google Scholar