Journal/NDM43 2008 eng

New Data on Minerals, vol.43, 2008

New Data on Minerals. Volume 43, 2008. 176 pages, 250 photos, and drawings.

Summary

This volume contains articles on new mineral species and new finds of rare minerals, among them – Nalivkinite, a new mineral of the astrophyllite group; new finds of Dzhalindite, Mo-bearing Stolzite and Greenockite in ores of the Budgaya, Eastern Transbaikalia; new finds of black Powellite in molybdenum-uranium deposit of Southern Kazakhstan. Corundum-bearing Pegmatite from the Khibiny massif and Columbite-Tantalite group minerals of raremetal tantalum-bearing amazonite-albite granites from Eastern Transbaikalia and Southern Kazakhstan are described. There is also an article on mineralogical and geochemical features of uranium ores from Southeastern Transbaikalia deposits. New data on titanium-rich Biotite and on polymorphs of anhydrous dicalcium orthosilicate are published.
“Mineralogical Museums and Collections” section contains articles on collections and exhibits of Fersman Mineralogical Museum RAS: on the collection of mining engineer I.N. Kryzhanovsky; on Faberge Eggs from the funds of this museum (including a describing of symbols on the box with these eggs); on the exhibition devoted to A.E. Fersman’s 125th anniversary and to 80 years of the first edition of his famous book “Amuzing Mineralogy” and the review of Fersman Mineralogical Museum acquisitions in 2006–2008. This section includes also some examples from the history of discovery of national deposits by collection’s specimens. In “Personalities” section there is article on A.E. Fersman’s Uralian expeditions and on his role in the organization of the Ilmeny State Reserve; arcticle on the life and the activity of Professor G.P. Barsanov, the director of the Fersman Mineralogical Museum in 1952–1976. “Mineralogical Notes” section is devoted to Fe-dominant Bogdanovite from cementation zone of the Aginsky goldtelluride deposit, Kamchatka; and on the find of Mackinawite inclusions in grossular at the Talnakh Achtarandite locality.
In “Discussions” section there is a paper on problems of species formation in mineralogy where minerals of variable composition and with variable structure are discussed on the example of eudialyte-eucolites. This journal is of interest for mineralogists, geochemists, geologists, staff of natural history museums, collectors, and rocks aficionados.

Editorial Board

Editor in Chief: M.I. Novgorodova - Doctor of Geology and Mineralogy, Professor
Executive Editor: E.A. Borisova - Ph.D. of Geology and Mineralogy
Members of Editorial Board:
E.I. Semenov - Doctor of Geology and Mineralogy
S.N. Nenasheva - Ph.D.of Geology and Mineralogy
E.N. Matvienko - Ph.D.of Geology and Mineralogy
M.B. Chistyakova - Ph.D.of Geology and Mineralogy
M.E. Generalov - Ph.D.of Geology and Mineralogy

Publishing group

Photo - M.B. Leybov
Leader of Publishing group - M.B. Leybov
Executive Editor - L.A. Cheshko
Art Director - N.O. Parlashkevich
Editor – A.L. Cheshko, A.A. Prokubovsky
Design and Layout – D. Ershov
Translators – M.S. Alferova, I.A. Anisimov, I.A. Baksheev, Mark Fed’kun, B.Z. Kantor, A.S. Yakubchuk
Editors (English Style) - Patricia Gray, Frank C. Hawthorne, Peter Modreski

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Сontent

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

Agakhanov A.A., Pautov L.A., Uvarova Y.A., Sokolova E., Hawthorne, Frank C., Karpenko V.Y. Nalivkinite Li₂NaFe²⁺₇Ti₂(Si₈O₂₄)O₂(OH)₄F, a New Mineral of the Astrophyllite Group from the Darai-Pioz Massif, Tadjikistan, p. 5 - 12

Nalivkinite, a new astrophyllite-group mineral, was discovered in the moraine of the Darai-Pioz alkaline massif located at the intersection of the Zeravshansky, Turkestansky and Alaisky Ridges, Tadjikistan. Nalivkinite occurs in the amphibole-quartz-feldspar rock in association with calcybeborosilite-(Y), bafertisite, jinshajiangite, zircon and thorite. Nalivkinite is brown with a bronze hue and a vitreous luster; in thin plates, it is transparent. Mohs hardness is 3, D_meas. = 3.32(2) g/cm³, D_calc. = 3.315 g/cm³. It is biaxial positive, n_p = 1.703(2), n_m = 1.716(2), n_g = 1.745(2), 2V_meas. = +68(2)°, 2V_calc. = +68.6°. Nalivkinite is triclinic, space group P1, a = 5.3745(6) Å; b = 11.9299(15) Å; c = 11.6509(14) Å; a =113.325(3)°, b = 94.524(2)°, g = 103.080(2)°, V = 656.2(2) Å3, Z = 1. Cell dimensions refined from X-ray powder diffraction data are as follows: a = 5.3707(2) Å; b = 11.9327(5) Å; c = 11.6546(4) Å; a =113.384(1)°, b = 94.547(1)°, 103.047(1)°, V = 655.85(2) Å3. The strongest reflections in the X-ray powder diffraction powder pattern are as follows: [(d, Å), (I, %), (hkl)]: 10.56 (100) (001), 3.50 (100) (003), 2.780 (80) (1–42), 2.648 (45) (211), 2578 (70)(130), 2.474 (15) (212), 2.295 (30) (131), 2.106 (35) (142), 1.760 (30) (133), 1.660 (15) (0–73). The infrared spectrum of nalivkinite is similar to that of astrophyllite, and the strongest lines are as follows (cm–1): 3600, 1621, 1077(sh), 1056, 975, 929, 696, 649, 566, 441, 438. The chemical composition (electron microprobe, wt. %, Li₂O and Rb₂O by ICP OES, H₂O by the Penfield method): Al₂O₃ – 0.67, SiO₂ – 35.92, TiO₂ – 10.50, Nb2O5 – 1.68, CaO – 1.29, MgO – 0.09, MnO – 5.26, FeO – 32.76, Na₂O – 1.62, K₂O – 2.49, Li₂O – 3.76, Cs₂O – 1.40, Rb₂O – 0.85, H₂O – 3.13, F – 0.75, -O=F₂ – 0.32, total – 100.04. The empirical formula of nalivkinite is (Li_1.03K_0.69Cs_0.13Rb_0.12)_1.97(Na_0.69Ca_0.30)_0.99(Fe²⁺_5.97Mn_0.97Mg_0.03)_6.97(Ti_1.72Nb_0.16Zr_0.08)_1.96[Si_7.83Al_0.17]₈O_25.98OH_4.07 (F_0.52OH_0.48)_1.00 and the ideal formula is Li₂NaFe²⁺₇Ti₂(Si₈O₂₄)O₂(OH)₄F. The crystal structure of nalivkinite was refined to an R1 index of 6.26%. The name honors Dmitry Vasiljevich Nalivkin, a famous Russian geologist (1889–1982), author of numerous works on the geology, stratigraphy and paleontology of Central Asia. The holotype sample of nalivkinite is deposited at the Fersman Mineralоgical Museum, Russian Academy of Sciences, Moscow. читать далее...

Kiseleva G.D., Kovalenker V.A., Trubkin N.V., Borisovsky S.E., and Mokhov A.V. Rare Minerals of In, Сd, Mo, and W in Gold-base Metal Veins of the Bugdaya Au-Mо(W)-porphyry Deposit, Eastern Transbaikalia, Russia, p. 13 - 22

New data on a number of rare minerals of In, Cd, Mo, and W, which have been obtained using modern analytical techniques, are described in this article. These minerals have been identified in gold-rich polymetallic ore superimposed on Mo(W) stockwork porphyry mineralization. Indium mineralization presents extremely rare dzhalindite In(OH)₃ that was previously described in Russia only from deposits Dzhalinda, Amur region and Verkhnee, Primorsky krai as supergene mineral. Tungsten and molybdenum are concentrated in rare intermediate phase of the wulfenite-stolzite series Pb(W_0.74Mo_0.26)O₄, and Cd, in greenockite CdS. Occurrence of well-shaped cubic crystals of dzhalindite exclusively in quartz and association of the mineral with sphalerite, native silver, and electrum allow suggesting its hypogene origin (in contrast to previous findings as supergene pseudomorphs after indium sulfide). However, additional investigation is required to establish formation conditions of dzhalindite. читать далее...

Sidorenko G.A., Chistyakova N.I., Doinikova O.A., Chukanov N.V., Naumova I.S., Kuzmin V.I. Black Powellite from Molybdenum-Uranium Deposit, p. 23 - 30

New data on black powellite from a Mo-U deposit, South Kazakhstan are given. Bipyramidal crystals of the mineral have been found in intimate association with uranium minerals of the oxidized zone, including uranyl-arsenate mica (uramarsite) and uranyl silicate uranophane-beta. X-ray diffraction, infrared spectroscopy, differential thermal analysis (DTA), analytical scanning electron microscopy (ASEM), electron microprobe, X-ray fluorescence analysis (XRFA), and laser spectrography have been performed to examine the mineral. Two varieties of powellite have been identified: crystalline in uranophane and amorphous in uranate. The causes of black color of powellite are discussed. This coloration of powellite can be prospecting guide for deposits of radioactive elements. читать далее...

Azarova Yu.V., Shlyukova Z.V. Corundum-bearing Pegmatite of Crossing Trend of Eevolution of the Khibiny Massif and their Role in Reconstruction of Parental Rocks of Host Pre-Proterozoic Hornfels, p. 31 - 36

Corundum-bearing pegmatoids located within the Svintsovy (Lead) Creek, Mount Kukisvumchorr are studied. Mineralogy of these pegmatoid bodies and its changes in the direction from nepheline syenite to xenolith of hornfels are described in detail. Microinclusions in corundum, sodalite, and nepheline are investigated. Formation process of the pegmatoids and initial composition of annite-feldspar hornfels are proposed. читать далее...

Povarennykh M.Yu. Typomorphism of the Columbite-Tantalite Group Minerals in the Rare-Metal Tantalum-bearing Amazonite-Albite Granites, p. 37 - 44

Mineralogical investigation of three tantalum-bearing granite massifs Orlovskoe and Aetykinskoe (Transbaikalia) and Maykul`skoe (Kazakhstan) has been conducted. Typomorphic peculiar features of the columbite–tantalite (Col-Ta) group minerals in these massifs according to their connection with different age phase and facial granite varieties have been revealed. It has been shown that combined with the other typomorphic signs crystal morphology peculiar features of the Col-Ta group minerals could be advantageously used during the geological prospecting for the survey and estimation of tantalum ore occurrences within the massifs of amazonite–albite rare metal subalkalic type granites. Col-Ta typomorphic signs may be also used at the stage of the detailed and exploitation exploration during the mineralogical and technological mapping of tantalum deposits in such massifs. читать далее...

Chernikov A.A., Dubinchuk V.T., Tolkachev A.E., Chistyakova N.I., and Nechelyustov G.N. Mineralogical and Geochemical Features of Deposits in the Southeastern Transbaikalia for Local Forecast of Uranium Ore, p. 45 - 52

A.A. Chernikov discovered the uranium-molybdenum hydrochemical anomaly in the southern Argun region (southeastern Transbaikalia) that had been forcible argument for geological substantiation to renew research and exploration for uranium in this region. This anomaly is important to understand a state of supergene zone of uranium deposits with leached near-surface oxidired zone in the region. The Strel’tsovsk-Antei largest uranium deposits in Russia (Laverov et al., 1991, 1992) are characterized by great vertical extension (2.7 km) of ore mineralization and variation of ore mineralogy, mineralogy of metasomatic and host rocks downward (Ishchukova and Modnikov, 1991; Andreeva et al., 1996; Chernikov, 2006/2007). Chernyshov and Golobev (1996) reported and we confirmed in this study that massive pitchblende ore was deposited within interval 134–136 (~150) Ma. Isotopic age of “protore” is 250–260 (~300) Ma; age of Th-bearing uraninite is ~500 Ma and older. New data indicated that uranium (IV) oxides and silicates, including coffinite, uranium titanates, and brannerite, in ore of the Antei deposit are young, from zero to few Ma. Exclusively very young uranium (IV) silicates and titanates are observed at lower levels of the Anntei deposit. These mineral precipitated from meteoric water infiltrated from surface into deep levels of the deposit. The basic level of karst and fracture rocks can be probable outflow area of meteoric water at the Argun deposit. Distribution of oxygen and carbon isotopes in the Argun and Antei structural clusters confirms the main role of meteoric solution to form various minerals at the uranium deposits; this is important for revealing additional exploration and estimation criteria for these deposits. Large uranium accumulations are predicted to the northward of the Strel’tsovsk structure. читать далее...

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

Yamnova N.A., Egorov-Tismenko, Yu.K., Gobechiya E.R., Zadov A.E., Gazeev V.M. New Data on Polymorphs of Anhydrous Dicalcium Orthosilicate, p. 54 - 71

This article describes new data on polymorphous modifications (a, a’_L, a’_H, b, g) of Ca₂SiO₄. Structural features and mechanisms of phase transition between Ca₂SiO₄ polymorphs interrelated to modifications of K-Na sulfate aphthitalite (glaserite) K₃Na[SO₄]₂ have been analyzed with regard to modular theory and theory of the closest packing. The major structural module ^[12]M(1)^[6]M(1’)^[10]M(2)₂[TO₄]₂ (M = K, Na, Ca, Mg; T = S, Si) has been revealed for the Ca₂SiO₄ modifications and relative natural “glaserite-type” silicate minerals, bredigite Ca₇Mg[SiO₄]₄ and merwinite Ca₃Mg[SiO₄]₂; and calcio-olivine (γ-Ca₂SiO₄) examined by the authors. The structural glaserite modules similar in symmetry and composition in the structures of described compounds account for topotactic character and reversible phase transition between the Ca₂SiO₄ polymorphs on the one hand and abundant assemblages of the mineral series on the other. читать далее...

Chukanov N.V., Rozenberg K.A., Rastsvetaeva R.K., Möckel Steffen New Data on Titanium-rich Biotite: a Problem of “Wodanite”, p. 72 - 77

Titanium-rich mica of the biotite series (“wodanite”) was found in tefrite of paleovolcano Rothenberg, Eifel, Germany, and studied by combining of electron microprobe analysis, IR spectroscopy and single-crystal structure analysis. The mineral is monoclinic, space group C2/m; unit-cell parameters are: a = 5.3165(1), b = 9.2000(2), c = 10.0602(2) Å, b = 100.354(2) . The presence of Ti results in strong distortion of the octahedron M(2). IR spectrum demonstrates the absence of detectable amounts of OH groups. The empirical formula of Ti-rich biotite is: (K_0.74Na_0.15Ca_0.05)S_0.94(Mg_1.60Ti_0.74Fe²⁺_0.62Cr_0.04)S_3.00[(Si_2.61Al_1.29Fe³⁺_0.10)S_4.00O₁₀](O_1.17F_0.71). Regularities of isomorphous substitutions, as well as genesis of Ti-rich micas of the biotite series are discussed. The idealized formula of the magnesium-titanium end member of this series is: K(Mg₂Ti)(Si₃AlO₁₀)O₂. читать далее...

Mineralogical Museums and Collections

Matvienko E.N. Collection of Mining Engineer I.N. Kryzhanovsky, p. 79 - 85

Collection of mining engineer I.N. Kryzhanovsky was purchased for the Mineralogical museum of the Academy of Science by the efforts of academician V.I. Vernadsky, A.E. Fersman and V.I. Kryzhanovsky in 1912. The collection accounts more than 4500 mineral specimens mainly from the Urals and Siberia and had an exceptional scientific significance for the studies of mineralogy of Russia. It was gathered and professionally formatted by the father and the sons Kryzhanovsky. There is a full catalog with precise designation of a mineral, its original locality and comments on the collection gathering and brief description of the minerals by groups. Overview of the collection material held at the Mineralogical Museum of the Russian Academy of Science is provided. читать далее...

Generalov M.E. Fabergé Eggs for Everyone. Point of Value, p. 86 - 89

This article describes a set of Fabergé keychain eggs from the collection of the Fersman Mineralogical Museum of the RAS. The weight, size, and manufacturing material were compared to the original labels on the boxes, which helped to decode their original price range. читать далее...

Kuzmin V.I., Skorobogatova N.V. To the History of Discovery of Some National Deposits by Collection’s Specimens, p. 90 - 96

The history of geological discoveries has many bright examples of deposits found by the sample material from the field works of previous years or as a result of thorough looking through a museum collection. Several such a finds have significantly increased the country’s mineral resources base and are described in the article. In particular this article will detail in the main role of plentiful gathering of the Fedorov museum in the Urals in the discovery of the major bauxite deposits; reclamation of Chorukh-Dairon sheelite deposit which was found by N.A. Smolyaninov by museum’s specimens; the epic history of search for kimberlites in Siberia using “pyrope path” method invented by A.A. Kukharenko based on his collection of South African kimberlites; the Zheltaya Reka (Zheltorechenskoe) deposit, the first uranium deposit in the USSR, and several other deposits is also described. The data provided will show the importance of careful keeping and practical use of mineral collections and using previous geological works for continuation and success of the later studies. читать далее...

Borisova E.A., Pavlova T.M., Evseev A.A. «Amusing Mineralogy» in Stone: the Exhibition Devoted to Alexander E. Fersman’s 125th Anniversary, p. 97 - 108

The exhibition in the Fersman Mineralogical Museum, devoted to academician A.E. Fersman’s anniversary is described. читать далее...

Belakovskiy D.I. and Pekova N.A. The Review of Fersman Mineralogical Museum Acquisitions in 2006–2008, p. 109 - 123

1337 new mineral specimens were catalogued into main inventory of Fersman Mineralogical Museum RAS in 2006–2008. Those specimens represented by 580 mineral species from 66 countries and from ocean floor and space as well. Among them 200 species are new for Museum collections including 50 species that were discovered during this period. Fifteen of those species were discovered with participation of Museum staff members. Of the species obtained 61 represented by type specimens, cotypes or their fragments. By the end of 2008 the number of valid mineral species in Museum reached 3200. Of the newly acquired items 792 (60%) were donated by 150 persons and by 6 organisations (including about 4.5% obtained as type specimens); 95 specimens (7%) were purchased; 261 (20%) were exchanged and – 157 (about 12%) were collected by Museum staff. Other types of acquisitions are about 1%. A review of new acquisitions classified by mineral species, geography, it’s types and sources. The list of new species for Museum given in attachment. читать далее...

Personalities

Butorina L.A. Alexander E. Fersman in the Ilmeny Mountains, p. 125 - 131

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Chistyakova M.B. G.P. Barsanov – the Director of the Fersman Mineralogical Museum (1952–1976), p. 132 - 137

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Gur’eva E.Ya. Georgiy Pavlovich Barsanov as I Remember Him, p. 138 - 141

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Mineralogical Notes

Spiridonov E.M. Fe-dominant Bogdanovite from Cementation Zone of the Aginsky Gold-Telluride Deposit, Kamchatka Peninsula, Russia, p. 143 - 145

Fe-dominated bogdanovite, Au₅CuFe₂(Te,Pb)₂, a specific supergene mineral, occurs in the weathering profile (in cementation zone) of the Aginsky gold-telluride deposit, Kamchatka Peninsula, Russia. Bogdanovite has been formed as a result of replacement of hypogene kostovite, krennerite, sylvanite, altaite, nagyagite, bornite, and chalcopyrite. The mineral is associated with Fe-Pb and Fe-Cu-Pb tellurites. In the oxidized zone, bogdanovite is replaced by finegrained segregations of gold, balyakinite, and plumbotellurite. The composition of Fe-dominated bogdanovite (average of four point analyses) is as follows, wt %: 60.35 Au, 2.19 Ag, 4.63 Cu, 9.33 Fe, 9.99 Te, 12.83 Pb, 0.07 Se; total is 99.39. Formula is as follows: Au_4.33Ag_0.29Cu_1.03Fe_2.36Te_1.11Pb_0.87Se_0.01. Bogdanovite has a metallic type of conductivity and relatively high microhardness VHN₂₀ = 290–354 kg/mm², average 321 kg/mm² (n = 14). The mineral is anisotropic, biaxial. It is extremely specific in reflected light. Color bireflectance varying from grey and light violet to bright golden and red, and strong color anisotropy are characteristic features. Reflectance ranges from 2 to 43% in visible light. Change of reflectance sign at 670 nm is typical. According to optical parameters, the symmetry of bogdanovite is not higher than orthorhombic. According to X-ray diffraction data, bogdanovite is interstitial superstructure of the Me4X type derived from face-centered lattice of gold. Parameter of the primitive pseudocubic subcell is 4.087 Å. Color images of Fe-dominated bogdanovite are first shown that will assist for corrected application of term bogdanovite. читать далее...

Alferova M.S. About Mackinawite Inclusions in Grossular Crystals at the Talnakh (Mt. Otdel’naya) Achtarandite Locality, p. 146

The discovery of mackinawite in paragenesis with magnesio-chromite within inclusions in grossular garnet at the Otdel’naya mountain locality of achtarandite in the Talnakh region is described. An occurence of the mackinawite is an evidence of the lowtemperature conditions of the achtarandite mineral association formation. читать далее...

Discussions

Borutzky B.Ye. The Essays on Fundamental and Genetic Mineralogy: 3. Minerals of Variable Composition with Variable Structure and Problems of Species Formation in Mineralogy. Eudialyte-Eucolites, p. 148 - 173

This paper is one of a series on genetic and fundamental mineralogy (Borutzky, 2005; 2006) where the problem of mineral species definition are discussed. In particular, the correlation of such fundamental terms in mineralogy as mineral – mineral species – mineral variety are considered, and compared to analogous nomenclature units in biology – another natural science. Also, the necessity for a genetic basis in mineral species definition is shown and the natural genetic taxonomy elaborated and applied to the feldspar group is demonstrated; this approach was used for the corresponding part in “Minerals” reference book (2003). The author insists that formalised structural and chemical criteria for mineral species recommended by the International Mineralogical Association (IMA) Commission on New Minerals, Nomenclature and Classification (CNMNC) without consideration of genesis discredits mineralogical science, because the result in unwarranted “reproduction” of abstract species which do not correspond to real discrete mineral entities widespread in certain geological environments. The paper is devoted to the detailed consideration of so-called minerals of variable composition and variable structure defined by the author (Borutzky, 1997; 1999) using the example of eudialyte-eucolites, and also the scientific and opportunistic problems accompanying the study of these chemically and structurally unique minerals. читать далее...

Alferova M.S. International Scientific Conference “Fersman Days” and its youth session “Fersmaniada” devoted to the 125th anniversary of academician Alexander E. Fersman, p. 174

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Manuscript preparation guide for the journal “New Data on Minerals”, p. 175

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