New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. V. Katiarsite, KTiO(AsO4) | Mineralogical Magazine | Cambridge Core (original) (raw)

Abstract

A new mineral katiarsite, ideally KTiO(AsO4), occurs in sublimates of the Arsenatnaya fumarole at the Second scoria cone of the Northern Breakthrough of the Great Tolbachik Fissure Eruption, Tolbachik volcano, Kamchatka, Russia. It is associated with hatertite, bradaczekite, johillerite, yurmarinite, tilasite, arsmirandite, hematite, tenorite, As-bearing orthoclase, fluorophlogopite and aphthitalite. Katiarsite occurs as long prismatic to acicular, typically sword-like, crystals up to 3 μm×10μm×50 μm in size, and rarely up to 0.15 mm long. Crystal forms are {011}, {201}, {100} and {001}. Katiarsite is transparent, colourless, with a vitreous lustre. The mineral is brittle. Cleavage was not observed, the fracture is uneven. Dcalc is 3.49 g cm–3. Katiarsite is optically biaxial (+), α = 1.784(3), β = 1.792(3), γ = 1.870(5); 2Vobs is small. Orientation is X = b, Y = a, Z = c. The Raman spectrum is reported. The chemical composition (wt.%, electron-microprobe data) is K2O 18.98, Fe2O3 5.07, TiO2 27.49, As2O5 47.48, total 99.02. The empirical formula, calculated based on 5 O apfu, is K1.00 (Ti0.85Fe3+0.16)∑1.01 As1.02O5. The strongest reflections of the powder X-ray diffraction pattern [d,Å(I)(hkl)] are 5.91(17)(110), 5.62(74)(011), 4.18(19)(202), 3.157(66) (013), 2.826(100)(221), 2.809(96)(022) and 2.704(19)(004). Katiarsite is orthorhombic, a = 13.174(4), b = 6.5635(10), c = 10.805(2) Å, V = 934.3(3) Å3, Z = 8, space group Pna21, by analogy with KTA, synthetic KTiO(AsO4), a notable non-linear optical crystalline material. The name of the mineral reflects its chemical composition, kalium titanyl arsenate.

Type

Research Article

Copyright

Copyright © The Mineralogical Society of Great Britain and Ireland 2016

References

Churakov, S.V., Tkachenko, S.I., Korzhinskii, M.A., Bocharnikov, R.E. and Shmulovich, K.I. (2000) Evolution of composition of high-temperature fuma-rolic gases from Kudryavy volcano, Iturup, Kuril Islands: the thermodynamic modeling. Geochemistry International, 38, 436–51.Google Scholar

El Brahimi, M. and Durand, I (1986) Structure et proprietes d'optique non lineaire de KTiOAsO4 . Revue de Chimie Minerale, 23, 146–153.Google Scholar

Mandarino, J.A. (1981) The Gladstone-Dale relationship. Part IV The compatibility concept and its application. The Canadian Mineralogist, 14, 498–502.Google Scholar

Mayo, S.C., Thomas, P.A., Teat, S.J., Loiacono, G.M. and Loiacono, D.N. (1994) Structure and nonlinear optical properties of KTiOAsO4. Acta Crystallographica, B50, 655–662.CrossRefGoogle Scholar

Northrup, P.A., Parise, IB., Cheng, L.K., Cheng, L.T. and McCarron, E.M. (1994) High-temperature single-crystal X-ray diffraction studies of potassium and (cesium, potassium) titanyl arsenates. Chemistry of Materials, 6, 434–440.CrossRefGoogle Scholar

Novikova, N.E., Verin, LA., Sorokina, N.I., Alekseeva, O.A., Tseitlin, M. and Roth, M. (2010) Structure of KTiOAsO4 single crystals at 293 and 30 K. Crystallography Reports, 55, 412–423.CrossRefGoogle Scholar

Paar, W.H., Cooper, M.A., Hawthorne, F.C., Moffatt, E., Gunther, M.E., Roberts, A.C. and Dunn, P.J. (2009) Braithwaiteite, NaCu5(TiSb)2O2(AsO4)[AsO3(OH)]2-8H2O, a new mineral species from Laurani, Bolivia. The Canadian Mineralogist, 47, 947–952.CrossRefGoogle Scholar

Pekov, I.Y., Zubkova, N.Y., Chernyshov, D.Y., Zelenski, M.E., Yapaskurt, YO. and Pushcharovsky, D.Y. (2013) A new Cu-rich variety of lyonsite from fumarolic sublimates of the Tolbachik volcano (Kamchatka, Russia) and its crystal structure. Doklady Earth Sciences, 448, 112–116.CrossRefGoogle Scholar

Pekov, I.Y., Zubkova, N.Y., Yapaskurt, YO., Belakovskiy, D.I., Lykova, I.S., Vigasina, M.F., Sidorov, E.G. and Pushcharovsky, D.Y. (2014a) New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. I. Yurmarinite, Na7(Fe3+,Mg, Cu)4(As04)6 . Mineralogical Magazine, 78, 905–917.CrossRefGoogle Scholar

Pekov, I.Y., Zubkova, N.Y., Yapaskurt, YO., Belakovskiy, D.I., Vigasina, M.F., Sidorov, E.G. and Pushcharovsky, D.Y. (20146) New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. II. Ericlaxmanite and kozyrevs-kite, two natural modifications of Cu4O(AsO4)2 . Mineralogical Magazine, 78, 1527–1543.Google Scholar

Pekov, I.Y., Zubkova, N.Y., Yapaskurt, V.O., Kartashov, P.M., Polekhovsky, YS., Murashko, M.N. and Pushcharovsky D.Y. (2014c) Koksharovite, CaMg2Fe4 +(VO4)6, and grigorievite, Cu3Fe2 +A12(VO4)6, two new howardevansite-group minerals from volcanic exhalations. European Journal of Mineralogy, 26, 667–677.CrossRefGoogle Scholar

Pekov, I.Y., Britvin, S.N., Yapaskurt, YO., Polekhovsky, YS., Krivovichev, S.Y., Vigasina, M.F. and Sidorov, E.G. (2015a) Arsmirandite, IMA 2014-081. CNMNC Newsletter No. 23, February 2015, page 57. Mineralogical Magazine, 79, 51—58.Google Scholar

Pekov, I.Y., Zubkova, N.V., Yapaskurt, YO., Belakovskiy, D.I., Vigasina, M.F., Sidorov, E.G. and Pushcharovsky, D.Y. (20156) New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. III. Popovite, Cu5O2(AsO4)2 . Mineralogical Magazine, 79, 133–143.CrossRefGoogle Scholar

Pekov, I.Y., Zubkova, N.V., Belakovskiy, D.I., Yapaskurt, YO., Vigasina, M.F., Sidorov, E.G. and Pushcharovsky, D.Y (2015c) 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.CrossRefGoogle Scholar

Phillips, M.L.F.., Harrison, W.T.A.., Stucky, G.D., McCarron III, E.M., Calabrese, J.C. and Gier, T.E. (1992) Effects of substitution chemistry of in the KTiOPO4 structure field. Chemistry of Materials, 4 222–233.CrossRefGoogle Scholar

Stucky, G.D., Phillips, M.L.F.. and Gier, T.E. (1989) The potassium titanyl phosphate structure field: a model for new nonlinear optical materials. Chemistry of Materials, 1 492–509.CrossRefGoogle Scholar

Watson, G.H. (1991) Polarized Raman spectra of KTiOAsO4 and isomorphic nonlinear-optical crystals. Journal of Raman Spectroscopy, 22, 705–713.CrossRefGoogle Scholar

Weber, M.J. (editor) (2003) Handbook of Optical Materials, . CRC Press, Boca Raton USA.Google Scholar

Zelenski, M., Malik, N. and Taran, Yu. (2014) Emissions of trace elements during the 2012–2013 effusive eruption of Tolbachik volcano, Kamchatka: enrichment factors, partition coefficients and aerosol contribution. Journal of Volcanology and Geothermal Research, 285, 136–149.CrossRefGoogle Scholar