Journal/NDM59 2025 eng
New Data on Minerals, Volume 59, 2025
DEADLINES FOR ARTICLES
Issue 1 - March 31, 2025
Issue 2 - May 31, 2025
Issue 3 - August 31, 2025
Issue 4 - November 30, 2025
Editorial Board
Editor in Chief:
Plechov P.Yu. -D.Sc. in Geology and Mineralogy, Professor
Members of Editorial Board:
Pekov I.V. - Corresponding Member of the Russian Academy of Sciences
Garanin V.K. - D.Sc. in Geology and Mineralogy, Professor
Borutsky B.E. - D.Sc. in Geology and Mineralogy
Spiridonov B.E. - D.Sc. in Geology and Mineralogy
Chukanov N.V. - D.Sc. in Physical and Mathematical Sciences
Kamenetsky V.S. - Professor (University of Tasmania)
Nenasheva S.N. - PhD in Geology and Mineralogy
Matvienko E.N. - PhD in Geology and Mineralogy
Generalov M.E. - PhD in Geology and Mineralogy
Pautov L.A. - Senior Researcher
Layout Designer
Kronrod E.V. - PhD in Chemistry
Content
Issue 1
Pautov L.A., Shodibekov M.A., Makhmadsharif S.
Discovery of tainiolite in the carbonatites of the Dunkeldyk massif, Eastern Pamirs, p. 5-12
Taeniolite, KLiMg2Si4O10F2, was discovered in a strontium-rich carbonatites of the Cenozoic subvolcanic potassium alkaline complex of Dunkeldyk (37о46'50N, 74o59'37E), Eastern Pamir, Gorno-Badakhshan Autonomous Oblast, Tajikistan. Taeniolite occurs as light-brown lamellar grains up to 3 mm in diameter and up to 0.4 mm in thick in a rock, which consists of calcium strontianite (Sr0.54Ca0.46)CO3, fluorite, Sr-bearing calcite, strontianite, Sr-bearing fluorapatite, barite, amphibole group member, which close to magnesio-fluoro-arfvedsonite, aegirine, cancrinite group mineral, ankylite-(Ce) and pyrite. Taeniolite is optically biaxial (–), 2V = 5–10(2)o. Refractive indices of the mineral are: ng = nm = 1.547(2), np= 1.524(2). Taeniolite from the Dunkeldyk massif is characterized with lithium content close to theoretical and extreme fluorine amount. Chemical analysis by electron microprobe (7 points) and LA-ICP-MS for Li gave SiO2 58.98, TiO2 0.09, Al2O3 0.23, FeO 0.51, MnO 0.12, MgO 19.89, K2O 11.28, Na2O 0.38, Li2O 3.65, F 9.24, H2O 0.07, total 104.44; –O=F2 –3.88; total 100.57 wt%. The empirical formula, based on 10 O apfu is: (K0.97Na0.05)1.02(Li0.97Mg0.03)1.00(Mg1.97Fe0.03Mn0.01)2.01(Si3.97Al0.02Ti0.01)4.00O10[F1.97(OH)0.03]2. The main absorption bands in the IR spectrum of taeniolite (cm–1): 1129, 967, 721, 497, 383. In the Raman spectrum, strong lines (cm–1): 184, 258, 295, 307, 334, 701, 956, 1146. X-ray powder pattern of taeniolite is given. Apparently, this is the first discovery of a lithium mineral in the Dunkeldyk carbonatites.
Keywords: minnesotaite, ferrohortonolite-fayalite plagiogranites, Castel Mountain, Mountain Crimean mesozoids. читать далее...
Gritsenko Yu.D., Ogorodova L.P., Vigasina M.F., Dedushenko S.K., Ksenofontov D.A., Melchakova L.V.
Staurolite from staurolite-almandine-muscovite schists of the Patom Highland (Mamsko-Chuisky District, Irkutsk Region): a comprehensive physicochemical study, p. 13-24
The article presents the results of a comprehensive physicochemical study of staurolite from staurolite-almandine-muscovite schists of the Patom Highland of the Mama-Chuisky District (Irkutsk Region) using powder X-ray diffraction, electron probe microanalysis, IR, Raman and Mössbauer spectroscopy. The chemical formula of the mineral is (Fe2+1.7Mg0.3)(Al8.9Mg0.1)(Si3.9Al0.1)O22.8(OH)1.2. The enthalpy of formation of the studied staurolite from the elements was determined for the first time using high-temperature melt solution calorimetry on a Calvet microcalorimeter (– 11998 ± 11 kJ/mol). The value of its standard entropy was estimated and the value of the Gibbs energy of formation was calculated: 489.8 ± 2.1 J/(mol K) and −11271 ± 11 kJ/mol, respectively. The thermodynamic constants for staurolite of the idealized composition Fe2+2Al9Si4O23(OH) were calculated: ΔfH0(298.15 K) = − 11943 ± 12 kJ/mol, ΔfG0(298.15 K) = − 11222 ± 12 kJ/mol
.
Keywords: staurolite, Mamsko-Chuisky district, Patom Highland, Calvet microcalorimetry, enthalpy of formation, entropy, Gibbs energy, IR spectroscopy, Raman spectroscopy, Mössbauer spectroscopy. читать далее...
Karpenko V.Yu., Pautov L.A., Siidra O.I., Agakhanov A.A.
New data on the libethenite-zincolibethenite isomorphic series from the Khodzha-Rushnay-Mazar (S. Fergana, Kyrgyzstan) and the Kester deposit (Yakutia, Russia), p. 25-35
New data for the libethenite Cu2(PO4)(ОН) – zincolibethenite CuZn(PO4)(ОН) series from the Khodzha-Rushnay-Mazar location of V-bearing carbonaceous-siliceous slates (S. Fergana, Kyrgyzstan) and the Kester Sn-deposit (Yakutia, Russia) were obtained. Libethenite from Kyrgyzstan forms radial aggregates of prismatic crystals in which ZnO ranges from 13.1 to 19.6 wt% (0.38 to 0.58 Zn apfu). Vanadium traces occurs in it (0.3–0.4 wt% V). Libethenite from Yakutia forms several morphological varieties - dipyramidal isometric and dipyramidal flattened crystals and prismatic crystals growing on augelite or quartz. The Zn content is more variable and reach 21 wt% ZnO (0.63 Zn apfu). For most analysis, the ZnO content ranges from 13 to 17 (wt%) and tend toward the intermediate composition Cu(Zn0.5Cu0.5)(PO4)(OH). Arsenic occurs in libethenite from Kester (up to 11.8 wt% As2O5). There intense lines (101) and (011) in the libethenite X-ray powder are well resolved for Zn-free varieties, but they overlap for high-Zn libethenite and zincolibethenite, and their resolution requires longer count times. Unit cell volume increases from Zn-free libethenite (396.8 Å3) through Zn-bearing varieties (400.6 and 402.1 Å3) to zincolibethenite (404.5 Å3). Density, microhardness, optical properties and Raman spectra of minerals of the libethenite - zincolibethenite series from S. Fergana and Yakutia are given.
Keywords: libethenite, zincolibethenite, carbon-siliceous slates, zinc, vanadium, arsenic, Khodzha-Rushnay-Mazar, Kester deposit. читать далее...
Issue 2
Spiridonov E.М., Ovsyannikov G.N., Korоtaeva N.N.
Ti-V Allanite-(Ce), V Allanite-(Ce), Allanite-(Ce), REE Epidote, Y Epidote of island arc biotite-quartz gabbroids at Chamny-Burun intrusion, Mountain Crimea, p. 37-44
The article describes rare-earth minerals of the epidote group in biotite-quartz gabbroids of the Chamny-Burun intrusion within the Pervomaisk-Ayu-Dag island-arc complex of Mountain Crimea. Epidote group minerals, poor in Mg, Mn and Th, form syntactic intergrowths with biotite and inclusions in it. Ti-V allanite-(Ce), which is weakly zoned and deep brown in transmitted light, forms allanite crystals cores; it contains 3.5 wt.% of V2O3 and 1.2 wt.% of TiO2; the distribution of lanthanides in it is Ce >> La ~ Nd >> Y ~ Pr > Sm ~ Gd ~ Dy. V allanite-(Ce) and allanite-(Ce) form both weakly zoned and complex sectorial-zoned isolated or with REE epidote rims crystals. V allanite-(Ce), which is brown in transmitted light, contains 1.3-2.2 wt.% of V2O3 and 0.9 wt.% of TiO2; the distribution of lanthanides in it is Ce >> La ~ Nd >> Y > Pr > Sm > Gd ~ Dy. Light brown in transmitted light allanite-(Ce) contains up to 0.9 wt.% of V2O3 and TiO2; the distribution of lanthanides in it is Ce >> La ~ Nd > Y >> Pr > Sm ~ Gd ~ Dy. REE epidote forms complex zonal and sectorial-zoned crystals and rims around allanite-(Ce); the distribution of lanthanides in it is Ce >> La ~ Nd >> Y > Sm > Gd > Pr >> Dy. Y epidote, containing up to 2.6 wt.% of Y2O3, forms rims on allanite crystals, epidote group of Chamny-Burun gabbroids and other intrusions of the complex (Ayu-Dag and others) are significantly different: for the first case, Y epidote is present, whereas ferriallanite-(Ce) and allanite-(Y) are absent and vanadium predominates over titanium; the La/Nd value is 1.15-1.3 and hardly changes during the evolution (in other intrusions it changes by several times); the proportion of yttrium in Y+REE is three times higher and it is 11.5% against 4.4% in allanite of other intrusions; the proportion of Sm and Gd in the sum of lanthanides is two times higher and it is 2.7% and 2.2 against 1.1 and 1.2% in allanite of other intrusions. The actual data indicate that the profundity source of the Chamny-Burun intrusion was isolated from other gabbroid intrusions of Mountain Crimea, whereas most researchers believed that all gabbroid bodies are outshots of a single large gabbroid body underlying Mountain Crimean mesozoids.
Keywords: Ti-V allanite-(Ce), V allanite-(Ce), allanite-(Се), REE epidote, Y e[idote, island-arc biotite-quartz gabbroids, Mountain Crimea. читать далее...
Pautov L.A., Mirakov M.A., Iskandarov F.S., Nurulloev Ya.N., Mahmadsharif S.
Minerals of platinum group elements in the Gishun massif at the Darvaz Ridge, Northern Pamir, p. 45-71
In the Hukas Ni-Co-Cu PGE ore occurrence at the southern flank of the Gishun stratified peridotite-anorthosite-gabbro massif (Northern Pamirs, Gorno-Badakhshan Autonomous Region, Tajikistan) identified minerals are as follows: sperrylite PtAs2, hollingworthite RhAsS, irarsite Ir AsS, stibiopalladinite Pd5Sb2, antimonious cotulskite Pd (Te, Sb), borovskite Pd3SbTe4, merenskyite PdTe2. Sperrylite is the main mineral of platinum group elements (PGE) in the heavy fraction of the residual-colluvial sediments at the ore location. It occurs as crystals of 20-150 μm (rarely up to 250 μm) in size. Sperryllite reflectance spectra are given. VHN100 = 899 (range 706 – 1233kg/mm2). X-ray powder diffraction data of sperryllites are given. The elemental composition of most crystals is close to stoichiometric; chemical impurities are as follows: Rh to 0.5, S to 0.1 wt %. In a sperrylite crystal the outer zone is enriched with Ir to 14% wt. Inclusions of pyrrhotite + pentlandite + chalcopyrite, interpreted as captured droplets of Fe-Ni-Cu-S melt, which underwent subsolid transformations, were detected in sperrylite. Protogenic magmatic crystallization of sperrylite is suggested. Hollingworthite and irarsite were found in a heavy fraction derived from soft sediments and in samples of sulfide ores from the bedding rocks. In thin sections, these minerals are found in the form of crystals (1 to 15 microns) and crusts on sperrylite. Zoned-sectorial crystals (5-10 μm) were found in sulfide ores, the central part of which is composed of irarsite, the rest of which is hollingworthite. Irarsite reflectance spectra are given. Hollingworthite-irarsite series minerals characterized by chemical impurities, which are as follows (wt%): Os to 1.1; Co to 4.6; Ni to 3.3. Pd-Sb and Pd-Te – series minerals are often found in millerite-chalcopyrite-pyrite ores in the form of small-sized inclusions (3-10 microns in size). Microprobe analysis and optical properties are given. The origin of these minerals is possibly due to the release of PGE during metamorphism from protogenic pyrrhotite-pentlandite ores.
Keywords: Gishun massif, Hukas, Darvaz Ridge, Northern Pamir, Gorno-Badakhshan Autonomous Region, Tajikistan, minerals of platinum group elements (PGE), sperrylite, hollingworthite, irarsite, stibiopalladinite, antimonious kotulskite, borovskite, merenskyite. читать далее...
Shchekleina M.D., Plechov P.Yu., Plechova A.A.
Overheating effects on quartz melt inclusions Bishop tuff, p. 72-77
Experiment series on primary melt inclusions in quarts of Long Valley (USA) Bishop tuff F9 layer are described at this work. All experiments run over at atmospheric pressure and oxygen fugaсity corresponds NNO buffer at three different temperatures – 1100, 1150 and 1200 °C. Both depressurized fully degassed inclusions and ones that that kept the whole amount or part of primarily dissolved water. The part of preserved inclusions reduced with a raise of temperature. The raise of melt silicity in inclusion due to dissolution of host-mineral from the walls serves a criterion of volatiles preservation. Quartz-melt equilibrium temperature rises in melt inclusion when volatiles are lost so dissolution of host-mineral does not happen (at the temperature of experiment). Glass compositions of such inclusions corresponds the primer composition except volatiles. A group of inclusions that depressurized not at the beginning but some time over the experiment start can be described as a discrete group. Rims of newly formed cristobalite are typical for such inclusions. Quartz melt inclusions overheating leads to forming of two groups of melt inclusions that can be distinguished with SiO2 content. The first group (less SiO2) lost volatiles but kept the primer content of petrogenic components. The second group (higher SiO2) kept volatiles components but enriched with silica due to host-mineral dissolving.
Keywords: quartz, melt inclusions, overheating, degassing, buffering, cristobalite. читать далее...
Issue 3
Vyatkin S.V., Gritsenko Yu.D.
The possibility of using minerals of the amblygonite – montebrasite series as a geochronometer, p. 79-87
The radiation sensitivity and thermal stability of the paramagnetic center O– in the crystal structure of minerals of the amblygonite LiAlPO4F – montebrasite LiAlPO4(OH) series, formed on an oxygen ion of the (OH)– group, were studied using the electron paramagnetic resonance method. The effectiveness of the formation of centers under laboratory -irradiation and the Cp value limiting their concentration are evaluated. Using isochronous annealing, the thermal stability of radiation-sensitive O– centers formed in nature and in laboratory conditions was compared, and the results of exposure to the crystal structure of natural and laboratory irradiation were shown to be unequal. The studied O– center has characteristics suitable for dating time intervals of hundreds of millions of years, however, additional modification of EPR dating techniques is required for its correct use as a geochronometer.
Keywords: amblygonite, montebrasite, EPR, radiation-sensitive center, dating. читать далее...
Spiridonov E.M., Belyаkov S.N., Kulagov E.A., Mashkina A.A., Ivanova Yu.A., Egorov K.V., Korotaeva N.N.
Sperrylite metacrysts and metasoms in sulfide ores of the Norilsk ore field deposits, p. 88-194
Sulphide ores of the Norilsk ore field are famous for the largest sperrylite crystals in the world. The size of metacrystals varies from a few microns to 4–7 cm, twins – up to 14–21 cm, crystal aggregations – up to several tens cm. Sperrylite veinlets of various morphologies are also widespread. Sperrylite is distributed extremely irregularly. Its maximum amount is developed within exocontacts of veins of eutectic galena-chalcopyrite (-talnakhite, -mooihoekite) ores and among them. Sperrylite is the latest of the pneumatolytic Pd, Pt, Au and Ag minerals. The boundaries of its crystals are cut by all types of primary sulphide minerals and magnetite, paolovite, taimyrite-tatianaite, frudite, altaite, sobolevskite, niggliite, hessite, atokite-rustenburgite, insizwaite, geversite, tetraferroplatinum, stannopalladinite, plumbopalladinite, moncheite, menshikovite, electrum-kustelite-Au silver, Pd4SnSb mineral, naldrettite and others. The composition of large sperrylite crystals and most small ones is close to PtAs2 with a small impurity of Sb, Rh, Bi and Sn (< 0.5 wt.%). There are a lot of metacrystals of small size containing 1–2 wt.% of Sb. Antimony sperrylite is developed in ores rich in Sb minerals. With the increase of antimony content in sperrylite the Sn content usually increases significantly. The composition of norilsk sperrylite is stoichiometric; its composition variations – (Pt0.98-1.01Rh0-0,015)0.99-1.01 (As1.99-1.58Sb0-0.36Sn0-0.07Se0-0.05Bi0-0.035)1.99-2.01. The content of isomorphic impurities reaches up (wt.%): Sb 11.8: Bi 2.1; Sn 2.0; Se 1.2; Rh 0.5. Sperrylite formed mainly in sulphide ores, much less often in silicate rocks under the fluid influence rich in Pt and As. In those rare cases when sperrylite is developed in pyrrhotite ores enriched in Rh, rhodium sulfoarsenide – holingworthite is associated with sperrylite. Sb and Sn in Norilsk sperrylite were borrowed from replaced pneumatolytic minerals rich in these chemical elements. Selenium-containing sperrylite is usually developed among graphic ores, whereas galena contains a noticeable amount of Se. The X-ray film and the unit cell dimensions of pure Norilsk sperrylite a0 = 5.967 (2) Å corresponds to the standard value for this mineral 5.967 Å. The reducing of As component in sperrylite with the formation of platinum replacement rims took place during the processes of epigenetic low-grade metamorphism under the conditions of prehnite-pumpellyite facies.
Keywords: pneumatolytic sperrylite and Sb sperrylite, sulphide ores, Norilsk ore field. читать далее...
