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Arcanite from Fumarole Exhalations of the Tolbachik Volcano (Kamchatka, Russia) and Its Crystal Structure

Authors
  • Zubkova, N. V.1
  • Pekov, I. V.1
  • Ksenofontov, D. A.1
  • Yapaskurt, V. O.1
  • Pushcharovsky, D. Yu.1
  • Sidorov, E. G.2
  • 1 Moscow State University, Moscow, 119991, Russia , Moscow (Russia)
  • 2 Russian Academy of Sciences, Institute of Volcanology and Seismology, Far East Branch, Petropavlovsk-Kamchatsky, 683006, Russia , Petropavlovsk-Kamchatsky (Russia)
Type
Published Article
Journal
Doklady Earth Sciences
Publisher
Pleiades Publishing
Publication Date
Mar 01, 2018
Volume
479
Issue
1
Pages
339–341
Identifiers
DOI: 10.1134/S1028334X18030121
Source
Springer Nature
License
Yellow

Abstract

The crystal structure (R = 0.0194) of arcanite β-K2SO4 was studied on a single crystal from exhalations of the Arsenatnaya fumarole, Tolbachik Volcano (Kamchatka, Russia). The mineral crystallizes at a temperature of ≥350–430°C and associates with langbeinite, aphthitalite, hematite, tenorite, johillerite, and others. Arcanite is orthorhombic, Pnma, a = 7.4763(2) Å, b = 5.77262(16) Å, c = 10.0630(3) Å, V = 434.30(2) Å3, Z = 4. Its structure contains isolated SO4 tetrahedra, whereas K cations center ten- and nine-fold polyhedra.

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