Journal/NDM39 2004 eng

New Data on Minerals, vol.39, 2004

New Data on Minerals. Moscow.: Ocean Pictures, 2004. volume 39, 172 pages, 92 color images.
Editor-in-Chief Margarita I. Novgorodova. Publication of Fersman Mineralogical Museum, Russian Academy of Science.

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Summary

Articles of the volume give a new data on komarovite series minerals, jarandolite, kalsilite from Khibiny massif, presents a description of a new occurrence of nikelalumite, followed by articles on gemnetic mineralogy of lamprophyllite-barytolamprophyllite series minerals from IujaVritemalignite complex of burbankite group and mineral composition of rare-metal-uranium, berrillium with emerald deposits in Kuu granite massif of Central Kazakhstan. Another group of article dwells on crystal chemistry and chemical properties of minerals: stacking disorder of zinc sulfide crystals from Black Smoker chimneys, silver forms in galena from Dalnegorsk, tetragonal Cu₂₁S in recent hydrothermal ores of Mid-Atlantic Ridge, ontogeny of spiralsplit pyrite crystals from Kursk magnetic Anomaly. Museum collection section of the volume consist of articles devoted to Faberge lapidary and nephrite caved sculptures from Fersman Mineralogical Museum.
The volume is of interest for mineralogists, geochemists, geologists, and to museum curators, collectors and amateurs of minerals.

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Editorial Board

• Editor-in-Chief Margarita I .Novgorodova, Doctor in Science, Professor
• Editor-in-Chief of the volume: Elena A.Borisova, Ph.D
• Moisei D. Dorfman, Doctor in Science
• Svetlana N. Nenasheva, Ph.D
• Marianna B. Chistyakova, Ph.D
• Elena N. Matvienko, Ph.D
• Мichael Е. Generalov, Ph.D
• N.A.Sokolova — Secretary
• Translators: Dmitrii Belakovskii, Yiulia Belovistkaya, Il'ya Kubancev, Victor Zubarev

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Publishing group

• Photo: Michael B. Leibov, Michael R. Кalamkarov, Boris Z. Kantor, Natalia A. Pekova
• Leader of publishing group Michael B. Leibov
• Executive Editor Ludmila А. Cheshko (Еgorova)
• Art Director Nikolay О. Parlashkevich
• Editor Andrey L. Cheshko, Ekaterina V. Yakunina
• Design Dmitrii Ershov
• Layout Sophia B. Dvoskina

LIBRARY OF CONGRESS CATALOGINGIN PUBLICATION DATA

Authorized for printing by the Fersman Mineralogical Museum of the Russian Academy of Science
© Text, photo, drawings, Fersman Mineralogical Museum Russian Academy of Science, 2004
© Design, Ocean Pictures, 2004
Published by Fersman Mineralogical Museum RAS
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Сontent

New Minerals and Their Varieeties: New Finds of Rare Minerals, Mineral Paragenesis

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Igor V. Pekov, Yulia V. Azarova, Nikita V. Chukanov

New data on komarovite series minerals, p. 5 - 13

The complex (electron microprobe, Xray diffraction, IRspectroscopy etc.) research was accomplished for representative collection of samples of komarovite series minerals, occurred in pseudomorphs after vuonnemite from Lovozero and Khibiny alkaline massifs (Kola Peninsula), representations about their cation composition are much extended. New and earlier published materials on these minerals are critically considered and generalized. In light of their strongly pronounced zeolitelike structure, the schemes of isomorphism and decationization are discussed. Ideal general formula for komarovite series members: (Na,M)_6-xСa(Nb,Ti)₆[Si₄O₁₂](O,OH)₁₄(F,OH)₂·nH₂O where M = Ca, Sr, Ba, K, Pb, REE, Th etc. In this series, it is propesed to distinguish two mineral species: komarovite (decationized, corresponds to original komarovite, with x > 3) and natrokomarovite (cationsaturated, with x < 3). Within the limits of the modern nomenclature the latter term is represented more correct than earlier used for this mineral name «Na-komarovite». Komarovite and natrokomarovite strongly differ in chemical composition but are close on X-ray powder diagrams and IR-spectra. In chemical relation, oxosilicates of the komarovite series occupies an intermediate position between oxides of the pyrochlore group and silicates of the labuntsovite group. That causes a place of natrokomarovite in general scheme of evolution of niobium mineralization in differentiates of alkaline complexes: it appears as an intermediate product at fluctuations of the activity of silica in pegmatitichydrothermal systems. Komarovite is a typical transformational mineral species formed by solidstate transformation (decationization, ion exchange, additional hydration) of natrokomarovite under late hydrothermal and probably in hypergene conditions. читать далее...

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Atali A. Agakhanov, Leonid A. Pautov, Yulia A. Uvarova, Elena V. Sokolova, Frank C. Hawthorne,

Vladimir Yu. Karpenko, Vyacheslav D. Dusmatov , Eugenii I. Semenov Arapovite, (U,Th)(Ca,Na)₂(K_1-x□_x)Si₈O₂₀·H₂O, — new mineral, p. 14 - 19

New mineral, uranium analogue of turkestanite, arapovite, was found among alkaline rocks of Darai-Pioz (Tajikistan). The mineral is represented by zonal areas 0.10.3 mm width in turkestanite crystals from polylithioniteaegirinemicrocline rock. It is associated with stillwellite-(Ce), sogdianite, zektzerite, pyrochlore, hyalotekite, tazhikite group minerals, albite, and quartz. The mineral has darkgreen color; it is transparent in the thin sections. The hardness is 5.56.0 on Mohs' scale, Dexp.= 3.43(2), Dcalc.=3.414 g/cm³. The mineral is optically uniaxial, negative, nо=1.615(2); nе=1.610(2). It is partially metamict. Crystal structure was studied by singlecrystal method. The mineral is tetragonal, sp. gr. P4/mcc. Unit cell parameters are following: a=7.6506(4), c=14.9318(9)Å, V=873.9(1)ų, Z=2. Crystal structure refinement was made on annealed material by 528 independent reflexes with R1= 2.9%. Unit cell parameters of annealed mineral are following: a=7.5505(4), c= 14.7104(4)Å, V=838.6(1)Å. The main lines on powder Xray diagram are [d, Å, (I, %), (hkl)]: 7.57 (14) (010), 7.39 (12) (002), 5.34(23) (100), 5.28 (38) (012), 3.37 (100) (120), 3.31 (58) (014), 2.640 (64) (024), 2.161(45) (224). Chemical composition (electron microprobe method, wt %, H₂O — Penfield method) is following: SiO₂ 53.99, UO₂ 16.63, ThO₂ 10.57, Ce₂O₃ 0.55, La₂O₃ 0.14, Pr₂O₃ 0.05, Nd₂O₃ 0.62, Sm₂O₃ 0.11, Eu₂O₃ 0.14, Gd₂O₃ 0.03, Dy₂O₃ 0.13, PbO 0.82, CaO 8.11, Na₂O 2.54, K₂O 4.52, H₂O⁺ 1.80, total 100.76. The empiric formula of arapovite is (U_0.55Th_0.36 Pb_0.03Ce_0.03 Nd_0.03La_0.01 Sm_0.01 Eu_0.01 Dy_0.01)_1.04 (Ca_1.29 Na_0.73)_2.02 (K_0.85 0.15)_1.00Si₈O_20.06·0.89H₂O. The ideal formula is (U,Th)(Ca,Na)₂(K_1-x□_x)Si₈O₂₀·H₂O. The IR-spectrum is given. The mineral was named after Yu.A. Arapov, geologist, petrographer, worked at TurkestanAlay Range. читать далее...

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Leonid A. Pautov, Atali A. Agakhanov, Yulia A. Uvarova, Elena V. Sokolova, Frank C. Hawthorne

Zeravshanite, Cs₄Na₂Zr₃(Si₁₈O₄₅)(H₂O)₂, new cesium mineral from Darai-Pioz massif (Tajikistan), p. 20 - 25

New cesium mineral zeravshanite with formula Cs₄Na₂Zr₃(Si₁₈O₄₅)(H₂O)₂ (monoclinic system, sp. group C2/c, a = 26,3511(8)Å, b = 7.5464(3) Å, c = 22.9769(8)Å, β = 107.237(1)°, V = 4363.9(4)ų, Z = 4) was found in the moraine of DaraiPioz glacier located at the joint of Zeravshan, Turkestan and Alay Ranges (Tajikistan). The mineral was named after type locality. Zeravshanite forms of grains (from 0.02 up to 0.2 mm in size) in the quartz rock with aegirine, polylithionite, pectolite, reedmergnerite, sogdianite, leucosphenite, stillwellite-(Ce), microcline, baratovite, fluorite, galena, turkestanite, minerals of tazhikite and eudialyte groups, neptunite, pekovite, cesium analogue of polylithionite etc. Zeravshanite is colorless, transparent. Hardness is 6 on Mohs’ scale. Microindentation, VHN = 838 kgs/mm². Density is 3.09(5) (exp.), 3.17 (calc.) g/cm³. Zeravshanite is biaxial, optical negative. 2V (calc.) = — 63^о. Optic angle dispersion is medium, v>r. n_p = 1.582(2), n_m = 1.598(2), n_g = 1.603(2). The IRspectrum (strong absorption bands) is following: 1089, 1045, 978, 709, 662, 585, 538 cm^–1. The chemical composition (wt %, average on 6 electron microprobe analyses) is: SiO₂ — 52.20, TiO₂ — 0.43, ZrO₂ — 16.41, SnO₂ — 0.46, Fe₂O₃ — 0.21, Na₂O — 3.06, K₂O — 0.09, Cs₂O — 26.58, H₂O (calc.) — 1.74, total — 101.18. The strong lines of X-ray powder diagram are following (d, I): 6.32(5); 3.65(5); 3.35(10); 3.25(4); 2.82(5); 2.62(7); 1.946(4); 1.891(4); 1.865(4). Crystal structure is determined with R=2.8%. The sample with new mineral is kept in the Fersman Mineralogical Museum RAS (Moscow, Russia). читать далее...

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Svetlana V. Malinko , S. Anic’ic’, D. Joksimovic, A.E. Lisitsyn , V.V. Rudnev, G.I. Dorokhova, N.A. Yamnova, V.V. Vlasov, A.A. Ozol, Nikita V. Chukanov

Jarandolite Ca[B₃O₄(OH)₃], calcium borate from Serbia: new name and new data, p. 26 - 31

The new data are given on calcium borate jarandolite from Jarandol basin (Serbia) which short description has been published earlier (Stojanovic’ 1992, Stojanovic’ et al. 1993) under the tentative name «srbianite». Jarandolite forms columnar aggregates of flattened individuals up to 1.5 cm in length and associates with colemanite, howlite, ulexite, veatchite, studenitsite, pentahydroborite, and montmorillonite. The mineral is colourless, semitransparent. The lustre is vitreous, cleavage is highly perfect on (001). Microindentation hardness is Haverage = 645 kg/mm² (approximately 5 on Mohs’ scale). Density (exp): 2.49 (2) g/cm³, density (calc) = 2.57 g/cm³ (from empirical formula); 2.57 g/cm³ (from structural data). The mineral is optically biaxial, positive. 2V = 60(2)°, n_p = 1.573(2), n_m = 1.586(2), n_g = 1.626(2). Dispersion of optical axes is medium, r > v. Elongation is positive. Orientation is following: Np = c, Nm = b, aNg = +8°. Pleochroism is absent. The simple forms {001}, {011}, and {11} are observed. Microtwinning is on (001). IRspectrum and thermogram are given. Chemical composition (wet analysis, wt %) is: Na₂O 0.05, K₂O 0.07, CaO 30.56, MgO 0.02, MnO 0.01, Fe₂O₃ 0.20, Al₂O₃ 0.03, SiO₂ 0.20, B₂O₃ 55.44, Cl 0.21, H₂O 13.36, –O=Cl₂ –0.05, total 100.10. The empirical formula of jarandolite is: Ca_1.02(B_2.99Si_0.01)O_4.125(OH)_2.79Cl_0.01. The spiralscrewed chains of colemanite type underlie in the base of crystal structure of jarandolite, which has been studied on monocrystal (R = 0.035). The mineral is monoclinic, the space group P2₁/a, a = 8.386(3), b = 8.142(4), c = 7.249(3) Å, β = 98.33(3)°, V = 489.7 ų. The strongest lines of X-ray powder diagram are following [d, Å (I, %) (hkl)]: 4.32 (57) (111), 3.39 (100) (201), 3.13 (50) (211), 2.93 (23) (–202), 2.606 (25) (221), 1.849 (25) (–421, 420). читать далее...

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Vladimir Yu. Karpenko, Atali A. Agakhanov, Leonid A. Pautov, Tamara V. Dikaya, G.K. Bekenova

New occurrence of nickelalumite on Kara-Chagyr, South Kirgizia, p. 32 - 39

The finds of rare nickelalumite was made on occurrences of vanadiumbearing schists of Kara-Chagyr and Kara-Tangi (Batkensk Region, Kirgizia). The mineral forms radiatefibrous segregations, spherulites up to 1–2 mm in size in assemblage with ankinovichite, volborthite, tyuyamunite, allophane. The mineral colour is from light blue, almost colourless, to dark green. The intensive green colour is due to increased content of vanadium, which enters in the mineral as isomorphous admixture (up to 6.54% V₂O₅). Refractive index of vanadiumfree nickelalumite are n_g = 1.533(2), n_p = 1.524(2), highvanadium nickelalumite n~1.575–1.580 (average index). In the article there are a table of chemical compositions of nickelalumite and the diagrams of correlation dependence for pairs Ni — (sum of divalent cations), S–V, Si–V, Al–Si, Al–S. Highzinc nickelalumite is characteristic for Kara-Tangi, some analyses corresponds to zinc analogue of this mineral. The following scheme of heterovalent isomorphism is proposed: Al³⁺+(SO₄)^2- ↔ Si⁴⁺+(VO₄)^3-, that is also confirmed by IR-spectroscopy data. Taking into account this scheme, the formula of nickelalumite is (Ni,Zn,Cu⁺²)(Al,Si)₄[(SO₄),(VO₄)](OH)₁₂·3H₂O. The origin of this mineral is connected to lowtemperature alteration of carboniferous-siliceous schists, having increased contents of nickel and zinc. The find of nickelalumite is, obviously, the second in the world. читать далее...

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Olga A. Ageeva, Boris Ye. Borutzky

Kalsilite in the rocks of Khibiny massif: morphology, paragenesis, genetic conditions, p. 40 - 49

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Yulia V. Belovitskaya, Igor V. Pekov

Genetic mineralogy of the burbankite group, p. 50 - 64

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Yulia V. Azarova

Genesis and typochemism of lamprophyllite-barytolamprophyllite series minerals from lujavrite-malignite complex of Khibiny massif, p. 65 - 70

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Andrei A. Chernikov, Moisei D. Dorfman

Mineral composition of raremetaluranium, beryllium with emerald and other deposits in endo- and exocontacts of the Kuu granite massif (Central Kazakhstan), p. 71 - 79

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

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Margarita I. Novgorodova

Nanocrystals of native Gold and their intergrowths, p. 81 - 90

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Nadezhda N. Mozgova, Natalija I. Organova, Yuriy S. Borodaev, Nikolay V. Trubkin, Margareta Sundberg

Stacking disorder of zinc sulfide crystals from Black Smoker Chimneys (Manus Back-Arc basin, Papua-New Guinea region), p. 91 - 98

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Irina F. Gablina, Yury S. Borodaev, Nadezhda N. Mozgova, Yu. A. Bogdanov, Oksana Yu. Kuznetzova, Viktor I. Starostin,

Farajalla Fardust Tetragonal Cu₂S in recent hydrothermal ores of Rainbow (Mid-Atlantic Ridge, 36° 14'N), p. 99 - 105

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Oksana L. Sveshnikova

On forms of silver in galena from some leadzinc deposits of the Dalnegorsk district, Primor’ye, p. 106 - 112

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Juri M. Dymkov, Victor A. Slyotov, Vasiliy N. Filippov

To the ontogeny of spiralsplit cubooctahedral block-crystals of pyrite from the Kursk magnetic anomaly, p. 113 - 118

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Mineralogical Museums and Collections

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Marianna B. Chistyakova

Faberge lapidary in the Fersman Mineralogical Museum collection (RAS), p. 120 - 136

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Daria D. Novgorodova

Chinese jade disks from the Fersman Mineralogical Museum (RAS) collection. Experience in attribution. Significance and place in Chinese traditions, p. 137 - 146

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Dmitrii I. Belakovskiy

New Acquisitions to the Fersman Mineralogical Museum, Russian Academy of Sciences. 2002–2003, p. 147 - 158

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Mineralogical Notes

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Boris Z. Kantor

On the malachite spiral crystals, p. 160 - 163

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Vyacheslav D. Dusmatov , Igor V. Dusmatov

Diamond images on the postal stamps of the world, p. 164 - 167

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In memoriam: Vyacheslav Dzhuraevich Dusmatov, p. 168 - 169

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Igor V. Pekov, Valentina I. Popova, and Vladimir A. Popov

In memoriam: Alexander Kanonerov, p. 170 - 171

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Books reviews

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Books reviews, p. 172

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