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Wrightite, K2Al2O(AsO4)2, a new oxo-orthoarsenate from the Second scoria cone, Northern Breakthrough, Great Fissure eruption, Tolbachik volcano, Kamchatka peninsula, Russia

Published online by Cambridge University Press:  15 May 2018

Andrey P. Shablinskii ,
Stanislav K. Filatov ,
Lidyua P. Vergasova ,
Eugeniya Yu. Avdontseva  and
Svetlana V. Moskaleva
Andrey P. Shablinskii
Affiliation:
Institute of Earth Science, Saint-Petersburg State University, University Emb. 7/9., 199034, Saint-Petersburg, Russia Institute of Silicate Chemistry of the Russian Academy of Sciences, Makarova Emb. 2., 199034, Saint-Petersburg, Russia
Stanislav K. Filatov*
Affiliation:
Institute of Earth Science, Saint-Petersburg State University, University Emb. 7/9., 199034, Saint-Petersburg, Russia
Lidyua P. Vergasova
Affiliation:
Institute of Volcanology and Seismology, Far Eastern Branch of the Russian Academy of Sciences, Piip Boulevard 9, 683006 Petropavlovsk-Kamchatsky, Russia
Eugeniya Yu. Avdontseva
Affiliation:
Institute of Earth Science, Saint-Petersburg State University, University Emb. 7/9., 199034, Saint-Petersburg, Russia
Svetlana V. Moskaleva
Affiliation:
Institute of Volcanology and Seismology, Far Eastern Branch of the Russian Academy of Sciences, Piip Boulevard 9, 683006 Petropavlovsk-Kamchatsky, Russia
*
*E-mail: [email protected]
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Abstract

The new mineral wrightite, K2Al2O(AsO4)2, was found in 1983 at a fumarole on the Second scoria cone, Northern Breakthrough, Great Fissure eruption, Tolbachik volcano, Kamchatka peninsula, Russia, where it occurs as light yellow aggregates of transparent tabular crystals, with an average size of 0.05 mm × 0.03 mm × 0.005 mm. Wrightite is orthorhombic, space group Pnma, with the unit-cell parameters a = 8.230(5), b = 5.555(4), c = 17.584(1) Å, V = 803.9(6) Å3 and Z = 4 (from powder data). The empirical formula is (K1.69Na0.38)Σ2.07(Al1.80Fe0.24)Σ2.04As1.96O9. The crystal structure (R1 = 0.043) consists of Al2O(AsO4)2 layers in the ab plane with clusters of edge-sharing AlO6 octahedra. Each layer contains two independent isolated AsO4 tetrahedra and two AlO6 octahedra. AlO6 octahedra are linked by edges, forming zigzag chains along the b axis inside the Al–As layer. Eight- and six-coordinated K atoms are located in the interlayer space between Al2O(AsO4)2 layers. The mineral is biaxial (−), α =1.679(2), β =1.685(2), γ (calc.) =1.687; 2V(meas.) = 62(10)° (λ = 589 nm). The strongest lines in the powder X-ray diffraction pattern [d,Å(I)(hkl)] are: 8.77(36)(002); 4.458(17)(111); 4.010(19)(201,013); 3.875(19)(104) and 2.972(100)(015). The mineral was named in honour of Adrian Carl Wright, Emeritus Professor at the University of Reading, UK.

Keywords

wrightitenew mineral speciesoxo-orthoarsenatecrystal structurefumarole mineralsKamchatka peninsula
Type
Article
Information
Mineralogical Magazine , Volume 82 , Issue 6 , December 2018 , pp. 1243 - 1251
Copyright
Copyright © Mineralogical Society of Great Britain and Ireland 2019 

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Footnotes

Associate Editor: Andrew Christy

References

Boughzala, H. and Jouini, T. (1997) Preparation et structure cristalline d'un nouvel Oxyarséniate de chrome et de rubidium: Rb2Cr2O(AsO4)2. Journal of Solid State Chemistry, 134, 22–25.Google Scholar
Brown, I.D. and Altermatt, D. (1985) Bond-valence parameters obtained from a systematic analysis of the Inorganic Crystal Structure Database. Acta crystallographica, B41, 244–247.Google Scholar
Chang, R., Wang, S. and Lii, K. (1997) Layered iron(III) arsenates: synthesis and characterization of A 2Fe2O(AsO4)2 (A = K, Rb). Inorganic Chemistry, 36, 3410–3413.Google Scholar
Filatov, S.K., Vergasova, L.P., Gorskaya, M.G., Krivovichev, S.V., Burns, P.C. and Ananiev, V.V. (2001) Bradaczekite, NaCu4(AsO4)3, a new mineral species from the Tolbachik volcano, Kamchatka peninsula, Russia. The Canadian Mineralogist, 39, 1115–1119.Google Scholar
Filatov, S.K., Krivovichev, S.V., Burns, P.C. and Vergasova, L.P. (2004) Crystal structure of filatovite, K[(Al,Zn)2(As,Si)2O8]. European Journal of Mineralogy, 16, 537–543.Google Scholar
Fundamensky, V.S. and Firsova, V.A. (2009) PDWIN Operating Instructions. St Petersburg: NPP Bourevestnik.Google Scholar
Janssen, T., Janner, A., Looijenga-Vos, A. and de Wolff, P.M. (2006) Incommensurate and commensurate modulated structures. Chapter 9.8 in: International Tables for Crystallography. Volume C: Mathematical, Physical and Chemical Tables. Online edition. John Wiley & Sons inc.Google Scholar
Krivovichev, S.V., Vergasova, L.P., Filatov, S.K., Rybin, D.S., Britvin, S.N. and Ananiev, V.V. (2013) Hatertite, Na2(Ca,Na)(Fe3+,Cu)2(AsO4)3, a new alluaudite-group mineral from Tolbachik fumaroles, Kamchatka peninsula, Russia. European Journal of Mineralogy, 25, 683–691.Google Scholar
Pekov, I.V., Zubkova, N.V., Yapaskurt, V.O., Belakovskiy, D.I., Lykova, I.S., Vigasina, M.F., Sidorov, E.G. and Pushcharovsky, D.Y. (2014 a) New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. I. Yurmarinite, Na7(Fe3+,Mg,Cu)4(AsO4)6. Mineralogical Magazine, 78, 905–917.Google Scholar
Pekov, I.V., Zubkova, N.V., Yapaskurt, V.O., Belakovskiy, D.I., Vigasina, M.F., Sidorov, E.G. and Pushcharovsky, D.Y. (2014 b) New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. II. Ericlaxmanite and kozyrevskite, two natural modifications of Cu4O(AsO4)2. Mineralogical Magazine, 78, 1527–1543.Google Scholar
Pekov, I.V., Zubkova, N.V., Belakovskiy, D.I., Yapaskurt, V.O., Vigasina, M.F., Sidorov, E.G. and Pushcharovsky, D.Yu. (2015 a) New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. IV. Shchurovskyite, K2CaCu6O2(AsO4)4 and dmisokolovite, K3Cu5AlO2(AsO4)4. Mineralogical Magazine, 79, 1737–1753.Google Scholar
Pekov, I.V., Zubkova, N.V., Yapaskurt, V.O., Belakovskiy, D.I., Vigasina, M.F., Sidorov, E.G. and Pushcharovsky, D.Yu. (2015 b) New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. III. Popovite, Cu5O2(AsO4)2. Mineralogical Magazine, 79, 133–143.Google Scholar
Pekov, I.V., Yapaskurt, V.O., Britvin, S.N., Zubkova, N.V., Vigasina, M.F. and Sidorov, E.G. (2016 a) New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. V. Katiarsite, KTiO(AsO4). Mineralogical Magazine, 80, 639–646.Google Scholar
Pekov, I.V., Zubkova, N.V., Yapaskurt, V.O., Polekhovsky, Y. S., Vigasina, M.F., Belakovskiy, D.I., Britvin, S.N., Sidorov, E.G. and Pushcharovsky, D. Yu. (2016 b) New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. VI. Melanarsite, K3Cu7Fe3+O4(AsO4)4. Mineralogical Magazine, 80, 841–853.Google Scholar
Petříček, V., Dusek, M. and Palatinus, L. (2014) Crystallographic Computing System JANA2006: General features. Zeitschrift für Kristallographie – Crystalline Materials, 229(5), 345–352, https://doi.org/10.1515/zkri-2014-1737Google Scholar
Vergasova, L.P. and Filatov, S.K. (2016) A study of volcanogenic exhalation mineralization. Journal of Volcanology and Seismology, 10, 71–85.Google Scholar
Vergasova, L.P. and Filatov, S.K. (2012) New mineral species in products of fumarole activity of Great Tolbachik fissure eruption. Journal of Volcanology and Seismology, 6, 281–289.Google Scholar
Wright, A.C. (2010) Borate structures: crystalline and vitreous. Physics and Chemistry of Glasses. European Journal of Glass Science and Technology Part B, 51, 1–39.Google Scholar
Wright, A.C., Dalba, G., Rocca, F. and Vedishcheva, N.M. (2010) Borate versus silicate glasses: Why are they so different? Physics and Chemistry of Glasses: European Journal of Glass Science and Technology Part B, 51, 233–265.Google Scholar
Yania, H.B., Nilges, T., Rodewald, U.C. and Pottgen, R. (2010) New arsenates (V) NaKAl2O[AsO4]2 and Na2KAl3[AsO4]4. Material Research Bulletin, 45, 2017–2023.Google Scholar
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