Vasilseverginite

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Vasilseverginite
General
Category Arsenate mineral
Formula Cu9O4(AsO4)2(SO4)2
IMA symbol Vas [1]
Crystal system Monoclinic
Crystal class Prismatic (2/m)
(same H-M symbol)
Space group P21/m
Unit cell a = 8.113(4)  Å
b = 9.918(4) Å
c = 11.0225(5) Å; β = 110.86° (approximated)
Identification
References [2] [3]

Vasilseverginite is a very rare arsenate-sulfate mineral [3] with formula Cu9O4(AsO4)2(SO4)2. Its structure is of a new type. [2] It possesses a typical feature of many minerals of its type locality, the Tolbachik volcano, namely being a salt with oxide anions. However, it is the first Tolbachik copper oxysalt that is both arsenate and sulfate. [4] Vasilseverginite is monoclinic, with space group P21/n. [3]

References

  1. ↑ Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine. 85 (3): 291–320. Bibcode:2021MinM...85..291W. doi: 10.1180/mgm.2021.43 . S2CID   235729616.
  2. 1 2 Pekov, I.V., Britvin, S.N., Yapaskurt, V.O., Krivovichev, S.V., Vigasina, M.F., and Sidorov, E.G., 2015. Vasilseverginite, IMA 2015-083. CNMNC Newsletter No. 28, December 2015, 1864; Mineralogical Magazine 79, 1859–1864
  3. 1 2 3 "Vasilseverginite: Vasilseverginite mineral information and data". Mindat.org. Retrieved 2016-03-10.
  4. ↑ "Tolbachik volcano, Kamchatka Oblast', Far-Eastern Region, Russia - Mindat.org". Mindat.org. Retrieved 2016-03-04.


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