Journal/NDM40 2005 eng

New Data on Minerals, vol.40, 2005

New Data on Minerals. Moscow.: Ocean Pictures, 2005. volume 40, 168 pages, 15 color and 99 b/w drawings, schemes, photos.

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1 Summary
2 Editorial Board
3 Publishing group
4 Сontent

Summary

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Editorial Board

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Publishing group

Сontent

New Minerals and Their Varieties, New Finds of Rare Minerals, Mineral Paragenesis

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Pautov L.A., Bekenova G.K., Karpenko V.Yu., Agakhanov A.A. Chukhrovite(Nd), Ca₃(Nd,Y)Al₂(SO₄)F₁₃·12H₂O, a New Mineral, p. 5 - 10

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Pekov I.V., Chukanov N.V., Zadov A.E., Rozenberg K.A., Rastsvetaeva R.K. TsepiniteSr, (Sr,Ba,K)(Ti,Nb)₂(Si₄O₁₂)(OH,O)₂·3H₂O, a New Mineral of the Labuntsovite Group, p. 11 - 16

TsepiniteSr is a new mineral of the labuntsovite group (the vuoriyarvite subgroup); it is an analogue of tsepinite-Na, tsepiniteK, and tsepinite-Ca, with predominance of Sr among the extraframework cations. Tsepinite-Sr has been found in hydrothermal paragenesis in cavities of nepheline-syenite pegmatite at the Mt. Eveslogchorr in the Khibiny massif, Kola Peninsula, Russia. It is associated with microcline, albite, natrolite, analcime, aegirine, eudialyte, leifite, vuoriyarviteK, tsepiniteCa, kuzmenkoite-Zn, paratsepinite-Ba, takanelite, etc. The mineral forms coarseprismatic crystals up to 0.2 x 0.4 x 2 mm in size and crusts up to 4 x 5 mm. It is translucent, colourless or white; the streak is white, and the lustre is vitreous. The mineral is brittle, without cleavage; the fracture is uneven. The Mohs' hardness is ~5. The measured density is 2.67(2), and the calculated density is 2.63 g/cm³ . The mineral is optically biaxial, positive; N_p=1.649(2), N_m=1.651(2), N_g=1.770(4); 2V_meas=20(5)°, 2V_calc=16°. Chemical composition is as follows (the electron microprobe data, H₂O by TGA, wt %): Na₂O 0.61, K₂O 1.30, CaO 0.92, SrO 5.12, BaO 4.27, MgO 0.01, MnO 0.05, FeO 0.08, ZnO 0.26, Al₂O₃ 0.18, SiO₂ 41.89, TiO₂ 18.49, Nb₂O₅ 16.07, H₂O 11.14, total 100.39. The empirical formula calculated on (Si,Al)₄O₁₂(O,OH)₂ is as follows: (Sr_0.28Ba_0.16K_0.16Na_0.11Ca_0.09Zn_0.02) 0.82 (Ti_1.32Nb_0.69Fe_0.01)_2.02(Si_3.98Al_0.02)₄O₁₂[(OH)_1.89O_0.11]₂·2.59H₂O. The ideal formula is (Sr,Ba,K)(Ti,Nb)₂ (Si₄O₁₂)(OH,O)₂·3H₂O (Z=4). The mineral is monoclinic; space group Cm. The unit cell parameters (from the single crystal data) are as follows: a=14.490(3), b=14.23(1), c=7.881(3) Å, β=117.28(2)° , V=1444(1) Å ³. The strongest lines on the X-ray powder pattern are as follows (d,Å -I (hkl)): 7.10-90 (020, 001); 6.45-50 (200, 20-1); 5.01-40 (021); 3.230-100 (42-1, 400, 40-2); 3.135-80 (022, 041, 24-1); 2.510-80 (44-1, 401, 40-3, 042), 1.728-50 (461, 46-3, 081, 442, 44-4), 1.570-45 (84-1, 820, 84-3, 190, 82-4). The IR spectrum is given. The type specimen is deposited in the Fersman Mineralogical Museum RAS, Moscow. читать далее...

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Agakhanov A.А., Pautov L.A., Uvarova Y.A., Sokolova E.V., Hawthorne Frank, Karpenko V.Yu. Senkevichite, CsKNaCa₂TiO[Si₇O₁₈(OH)], a New Mineral, p. 17 - 22

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Agakhanov A.A., Karpenko V.Yu., Pautov L.A., Bekenova G.K., Uvarova Y.A., Sokolova E.V., Hawthorne Frank Kyrgyzstanite, ZnAl₄(SO₄)(OH)₁₂·3H₂O, a New Mineral from the KaraTangi Deposit, Kirgizia, p. 23 - 28

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Sidorenko G.A., Chistyakova N.I., Chukanov N.V., Naumova I.S., Rassulov V.A. Calcurmolite: New Data on Chemical Composition and Constitution of the Mineral, p. 29 - 36

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Karpenko V.Yu., Agakhanov A.A., Pautov L.A., Sokolova E.V., Hawthorne Frank, Bekenova G.K. Turanite from TyuyaMuyun, Kirgizia: New Data on Mineral, p. 37 - 43

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Fardoost F., Mozgova N.N., Borodaev Y.S., Organova N.I., Levitskaya L.A. Easily Oxidizable Chalcopyrite from Black Smokers of the Rainbow Hydrothermal Field (MidAtlantic Ridge, 36°14'N), p. 44 - 50

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Gritsenko Y.D., Spiridonov E.M. Minerals of the Nickeline-Breithauptite Series from Metamorphogenic-hydrothermal Veins of the Norilsk Ore Field, p. 51 - 64

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Chernikov A.A., Dubinchuk V.T., Chistyakova N.I., Naumova I.S., Zaitsev V.S. New Data on Vanadium Hematite Associated with Micro and Nanocrystals of Noble Metals, Copper, Zinc, and Iron Minerals, p. 65 - 71

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Groznova E.O., Dobrovol'skaya M.G., Kovalenker V.A., Tsepin A.I., Razin M.V. Bismuth Mineralization of Pb-Zn Ores at the Djimidon Deposit (North Osetia), p. 72 - 79

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Chukanov N.V., Ermolaeva V.N., Pekov I.V., Sokolov S.V., Nekrasov A.N., Sokolova M.N. Raremetal Mineralization Connected with Bituminous Matters in Late Assemblages of Pegmatites of the Khibiny and Lovozero Massifs, p. 80 - 95

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Filimonov S.V., Spiridonov E.M. Fahlores from the Kvartsitovye Gorki Hypabyssal Goldantimonite Deposit (North of Central Kazakhstan), p. 96 - 104

Crystal Chemestry, Minerals as Prototypes of New Materials, Physical and Chemical Properties of Minerals

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Novgorodova M.I. Metacolloidal Gold, p. 106 - 114

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Sokolova M.N., Smol'yaninova N.N., Golovanova T.I., Chukanov N.V., Dmitrieva M.T. Delhayelite Crystals from Ristschorrites of the Rasvumchorr Plateau (Khibiny Massif), p. 115 - 118