New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. XV. Calciojohillerite, NaCaMgMg2(AsO4)3, a member of the alluaudite group | Mineralogical Magazine | Cambridge Core (original) (raw)

Abstract

The new alluaudite-group mineral calciojohillerite is one of the major arsenates 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. In middle zones of the fumarole, calciojohillerite is associated with hematite, tenorite, johillerite, nickenichite, bradaczekite, badalovite, tilasite, lammerite, ericlaxmanite, aphthitalite-group sulfates, langbeinite, calciolangbeinite, anhydrite, sanidine, fluorophlogopite, fluoborite, cassiterite, pseudobrookite, rutile, sylvite and halite. In deep zones it occurs in association with anhydrite, diopside, hematite, svabite, berzeliite, schäferite, forsterite, magnesioferrite, ludwigite, rhabdoborite-group fluoroborates, powellite, baryte, fluorapatite, udinaite, arsenudinaite and paraberzeliite. Calciojohillerite forms prismatic crystals up to 1 cm long, their aggregates and crystal crusts up to 0.5 m2. It is transparent, colourless, pale green, pale yellow, light blue, pale lilac or pink, with vitreous lustre. The mineral is brittle, with imperfect cleavage. The Mohs hardness is 3½. Dcalc is 3.915 g cm–3. Calciojohillerite is optically biaxial (–), α = 1.719(3), β = γ = 1.732(3); 2Vmeas. = 15(10)°. Chemical composition (wt.%, electron-microprobe; holotype) is: Na2O 7.32, K2O 0.10, CaO 6.82, MgO 20.31, MnO 0.68, CuO 0.27, ZnO 0.02, Al2O3 0.56, Fe2O3 3.53, TiO2 0.01, SiO2 0.03, P2O5 1.25, V2O5 0.10, As2O5 58.77, SO3 0.13, total 99.90. The empirical formula based on 12 O atoms is (Na1.30K0.01Ca0.67Mg2.78Mn0.05Cu0.02Al0.06Fe3+0.24)Σ5.13(As2.83P0.10S0.01V0.01)Σ2.95O12. Calciojohillerite is monoclinic, C2/c, a = 11.8405(3), b = 12.7836(2), c = 6.69165(16) Å, β = 112.425(3)°, V = 936.29(4) Å3 and Z = 4. The crystal structure was solved from single-crystal X-ray diffraction data, R1 = 0.0227. Calciojohillerite is isostructural with other alluaudite-group minerals. Its simplified crystal chemical formula is A(1)CaA(1)′□A(2)□A(2)′NaM(1)MgM(2)Mg2(AsO4)3 (□ = vacancy). The idealised formula is NaCaMg3(AsO4)3, or, according to the nomenclature of alluaudite-group arsenates, NaCaMgMg2(AsO4)3. Calciojohillerite is named as an analogue of johillerite NaCu2+MgMg2(AsO4)3 with species-defining Ca instead of Cu in the ideal formula.

References

Abdallah, A.H. and Haddad, A. (2008) The alluaudite-like arsenate NaCaMg3(AsO4)3. Acta Crystallographica, E64, i36.Google Scholar

Agilent Technologies (2014) CrysAlisPro Software system, version 1.171.37.35. Agilent Technologies UK Ltd, Oxford, UK.Google Scholar

Auernhammer, M., Effenberger, H., Hentschel, G., Reinecke, T. and Tillmanns, E. (1993) Nickenichite, a new arsenate from the Eifel, Germany. Mineralogy and Petrology, 48, 153–166.CrossRefGoogle Scholar

Brese, N.E. and O'Keeffe, M. (1991) Bond-valence parameters for solids. Acta Crystallographica, B47, 192–197.CrossRefGoogle Scholar

Hatert, F. (2019) A new nomenclature scheme for the alluaudite supergroup. European Journal of Mineralogy, 31, 807–822.CrossRefGoogle Scholar

Jebli, S., Badri, A. and Ben Amara, M. (2016) Synthesis and crystal structure of a new alluaudite-like iron phosphate Na2CaMnFe(PO4)3. Acta Crystallographica, E72, 1806–1808.Google Scholar

Keller, P. and Hess, H. (1988) Die Kristallstrukturen von O'Danielit, Na(Zn,Mg)3H2(AsO4)3 und Johillerit, Na(Mg,Zn)3Cu(AsO4)3. Neues Jahrbuch für Mineralogie, Monatshefte, 395–404.Google Scholar

Keller, P., Hess, H. and Dunn, P.J. (1982) Johillerit, Na(Mg,Zn)3Cu(AsO4)3, ein neues Mineral aus Tsumeb, Namibia. Tschermaks Mineralogische und Petrographische Mitteilungen, 29, 169–175.CrossRefGoogle Scholar

Koshlyakova, N.N., Zubkova, N.V., Pekov, I.V., Giester, G. and Sidorov, E.G. (2018) Crystal chemistry of johillerite. The Canadian Mineralogist, 56, 189–201.CrossRefGoogle Scholar

Krivovichev, S.V., Filatov, S.K. and Burns, P.C. (2001) The Jahn-Teller distortion of copper coordination polyhedra in the alluaudite structural type: crystal structure of bradaczekite, NaCu4(AsO4)3. Zapiski Vserossiiskogo Mineralogicheskogo Obshchestva, 130, 1–8 [in Russian].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.CrossRefGoogle Scholar

Malcherek, T. and Schlüter, J. (2013) The keyite crystal structure, revisited. Zeitschrift für Kristallographie, 228, 620–628.Google Scholar

Moore, P.B. and lto, J. (1979) Alluaudites, wyllieites, arrojadites: Crystal chemistry and nomenclature. Mineralogical Magazine, 43, 227–235.CrossRefGoogle Scholar

Nakamoto, K. (1986) Infrared and Raman Spectra of Inorganic and Coordination Compounds. John Wiley & Sons, New York.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.Yu. (2014a) 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.CrossRefGoogle Scholar

Pekov, I.V., Zubkova, N.V., Yapaskurt, V.O., Belakovskiy, D.I., Vigasina, M.F., Sidorov, E.G. and Pushcharovsky, D.Yu. (2014b) 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., Yapaskurt, V.O., Belakovskiy, D.I., Vigasina, M.F., Sidorov, E.G. and Pushcharovsky, D.Yu. (2015a) 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.V., Zubkova, N.V., Belakovskiy, D.I., Yapaskurt, V.O., Vigasina, M.F., Sidorov, E.G. and Pushcharovsky, D.Yu. (2015b) 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

Pekov, I.V., Yapaskurt, V.O., Britvin, S.N., Zubkova, N.V., Vigasina, M.F. and Sidorov, E.G. (2016a) New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. V. Katiarsite, KTiO(AsO4). Mineralogical Magazine, 80, 639–646.CrossRefGoogle Scholar

Pekov, I.V., Zubkova, N.V., Yapaskurt, V.O., Polekhovsky, Yu.S., Vigasina, M.F., Belakovskiy, D.I., Britvin, S.N., Sidorov, E.G. and Pushcharovsky, D.Yu. (2016b) New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. VI. Melanarsite, K3Cu7Fe3+O4(AsO4)4. Mineralogical Magazine, 80, 855–867.CrossRefGoogle Scholar

Pekov, I.V., Koshlyakova, N.N., Agakhanov, A.A., Zubkova, N.V., Belakovskiy, D.I., Vigasina, M.F., Turchkova, A.G., Sidorov, E.G., Pushcharovsky, D.Y. (2016c) Calciojohillerite, IMA 2016-068. CNMNC Newsletter No. 34, December 2016, page 1317; Mineralogical Magazine, 80, 1315–1321.Google Scholar

Pekov, I.V., Yapaskurt, V.O., Belakovskiy, D.I., Vigasina, M.F., Zubkova, N.V. and Sidorov, E.G. (2017) New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. VII. Pharmazincite, KZnAsO4. Mineralogical Magazine, 81, 1001–1008.CrossRefGoogle Scholar

Pekov, I.V., Koshlyakova, N.N., Zubkova, N.V., Lykova, I.S., Britvin, S.N., Yapaskurt, V.O., Agakhanov, A.A., Shchipalkina, N.V., Turchkova, A.G. and Sidorov, E.G. (2018a) Fumarolic arsenates – a special type of arsenic mineralisation. European Journal of Mineralogy, 30, 305–322.CrossRefGoogle Scholar

Pekov, I.V., Zubkova, N.V., Agakhanov, A.A., Yapaskurt, V.O., Chukanov, N.V., Belakovskiy, D.I., Sidorov, E.G. and Pushcharovsky, D.Yu. (2018b) New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. VIII. Arsenowagnerite, Mg2(AsO4)F. Mineralogical Magazine, 82, 877–888.CrossRefGoogle Scholar

Pekov, I.V., Zubkova, N.V., Agakhanov, A.A., Belakovskiy, D.I., Vigasina, M.F., Yapaskurt, V.O., Sidorov, E.G., Britvin, S.N. and Pushcharovsky, D.Y. (2019a) New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. IX. Arsenatrotitanite, NaTiO(AsO4). Mineralogical Magazine, 83, 453–458.CrossRefGoogle Scholar

Pekov, I.V., Zubkova, N.V., Agakhanov, A.A., Ksenofontov, D.A., Pautov, L.A., Sidorov, E.G., Britvin, S.N., Vigasina, M.F. and Pushcharovsky, D.Yu. (2019b) New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. X. Edtollite, K2NaCu5Fe3+O2(AsO4)4 and alumoedtollite, K2NaCu5AlO2(AsO4)4. Mineralogical Magazine, 83, 485–495.CrossRefGoogle Scholar

Pekov, I.V., Lykova, I.S., Yapaskurt, V.O., Belakovskiy, D.I., Turchkova, A.G., Britvin, S.N., Sidorov, E.G. and Scheidl, K.S. (2019c) New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. XI. Anatolyite, Na6(Ca,Na)(Mg,Fe3+)3Al(AsO4)6. Mineralogical Magazine, 83, 633–638.CrossRefGoogle Scholar

Pekov, I.V., Lykova, I.S., Agakhanov, A.A., Belakovskiy, D.I., Vigasina, M.F., Britvin, S.N., Turchkova, A.G., Sidorov, E.G. and Scheidl, K.S. (2019d) New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. XII. Zubkovaite, Ca3Cu3(AsO4)4. Mineralogical Magazine, 83, 879–886.CrossRefGoogle Scholar

Pekov, I.V., Zubkova, N.V., Koshlyakova, N.N., Agakhanov, A.A., Belakovskiy, D.I., Vigasina, M.F., Yapaskurt, V.O., Britvin, S.N., Turchkova, A.G., Sidorov, E.G. and Pushcharovsky, D.Y. (2020a) New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. XIII. Pansnerite, K3Na3Fe3+6(AsO4)8. Mineralogical Magazine, 84, 143–151.CrossRefGoogle Scholar

Pekov, I.V., Koshlyakova, N.N., Agakhanov, A.A., Zubkova, N.V., Belakovskiy, D.I., Vigasina, M.F., Turchkova, A.G., Sidorov, E.G. and Pushcharovsky, D.Yu. (2020b) New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. XIV. Badalovite, NaNaMg(MgFe3+)(AsO4)3, a member of the alluaudite group. Mineralogical Magazine, 84, 616–622.CrossRefGoogle Scholar

Pekov, I.V., Lykova, I., Koshlyakova, N.N., Belakovskiy, D.I., Vigasina, M.F., Turchkova, A.G., Britvin, S.N., Sidorov, E.G. and Scheidl, K.S. (2020c) A new mineral species zincobradaczekite, NaCuCuZn2(AsO4)3, and a new isomorphous series bradaczekite–zincobradaczekite in the alluaudite group. Physics and Chemistry of Minerals, 47, paper 36.CrossRefGoogle Scholar

Shchipalkina, N.V., Pekov, I.V., Koshlyakova, N.N., Britvin, S.N., Zubkova, N.V., Varlamov, D.A. and Sidorov, E.G. (2020) Unusual silicate mineralization in fumarolic sublimates of the Tolbachik volcano, Kamchatka, Russia – Part 1: Neso-, cyclo-, ino- and phyllosilicates. European Journal of Mineralogy, 32, 101–119.CrossRefGoogle Scholar

Schlüter, J., Malcherek, T., Mihailova, B. and Gebhard, G. (2013) The new mineral erikapohlite, Cu3(Zn,Cu,Mg)4Ca2(AsO4)6⋅2H2O, the Ca-dominant analogue of keyite, from Tsumeb, Namibia. Neues Jahrbuch für Mineralogie, Abhandlungen, 190, 319–325.CrossRefGoogle Scholar

Symonds, R.B. and Reed, M.H. (1993) Calculation of multicomponent chemical equilibria in gas-solid-liquid systems: calculation methods, thermochemical data, and applications to studies of high-temperature volcanic gases with examples from Mount St. Helens. American Journal of Science, 293, 758–864.CrossRefGoogle Scholar

Tait, K.T. and Hawthorne, F.C. (2004) Johillerite from Tolbachik, Kamchatka peninsula, Russia: crystal-structure refinement and chemical composition. The Canadian Mineralogist, 42, 717–722.CrossRefGoogle Scholar