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| | '''Keywords:''' olivine, cumulate rocks, grain misorientations, Rodrigues-Frank space, EBSD. | | '''Keywords:''' olivine, cumulate rocks, grain misorientations, Rodrigues-Frank space, EBSD. |
| | | Файл = Shkurskiy_3_2022-1_rus.pdf | | | Файл = Shkurskiy_3_2022-1_rus.pdf |
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| | + | ==== '''Issue 2''' ==== |
| | + | {{NDM_article |
| | + | | Авторы = Pautov L.A., Mirakov M.A., Karpenko V.Y., Makhmadsharif S., Shodibekov M.A. |
| | + | | Название = Brannerite from the Eastern Pamir, p. 39-50 |
| | + | | Аннотация = A crystal of brannerite UTi<sub>2</sub>O<sub>6</sub> weighing 44.5 g was found on the right side of the Kukurt River in the Eastern Pamir (Gorno-Badakhshan, Tajikistan). The mineral is metamict. It gives an X-ray diffraction pattern of a mixture of brannerite, rutile and U3O8 after annealing. The chemical composition of brannerite (average over 10 microprobe analyzes) is calculated on O = 6 apfu on the formula (U<sup>+4</sup><sub>0.68</sub>U<sup>+6</sup><sub>0.13</sub>Y<sub>0.07</sub>Th<sub>0.05</sub>Ce<sub>0.01</sub>Gd<sub>0.01</sub>Dy<sub>0.01</sub>Yb<sub>0.01</sub>Ca<sub>0.01</sub>)<sub>0.98</sub>(Ti<sub>1.89</sub>Fe<sup>+3</sup><sub>0.13</sub>)<sub>2.02</sub>O<sub>6</sub>. Density (meas.) 5.40(5) g/cm3. In reflected light it is light gray with moderate reflectivity (reflectance spectrum is given). The mineral is isotropic due to its metamict nature. Reflections in the air are red-brown. Microhardness VHN = 674. Raman spectrums of brannerite and its alteration products are given. The substitution products of brannerite are described briefly.<br> |
| | + | '''Keywords:''' brannerite, metamict mineral, uranium, Kukurt, Gorno-Badakhshan, Tajikistan, Eastern Pamir. |
| | + | | Файл = Pautov_1_2022-2_rus.pdf |
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Версия 18:57, 16 ноября 2022
New Data on Minerals, Volume 56, 2022
DEADLINES FOR ARTICLES
Issue 1 - March 31, 2022
Issue 2 - May 31, 2022
Issue 3 - August 31, 2022
Issue 4 - November 30, 2022
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
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Generalov M.E.
The Fate and the Ways of the Junior Scientist Curator. Henry I. Kasperovich’s Materials in the Fersman Mineralogical Museum, p. 5-11
The article tells about the fate of Henry Kasperovich, an assistant of V.I. Vernadsky, who worked with him at Moscow University, and then followed him to the Mineralogical Museum of the Academy of Sciences.
The analysis of information on the minerals with his authorship in the Museum's collection shows that a significant part of them is connected with the first research of the Radium expedition organized by V.I. Vernadsky, and makes it possible to clarify their localities, including problematic ones related to changes in the political and administrative statuses of territories.
Keywords: Mineralogical Museum of the Academy of Sciences, collection, H.I. Kasperovich, V.I. Vernadsky, A.E. Fersman, Radium expedition, Caucasus. читать далее...
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Pautov L.A., Mirakov M.A., Karpenko V.Yu., Makhmadsharif S.
Ge-bearing cassiterite from sublimates of a natural underground fire
in the Kukhi-Malik tract in the Ravat area of the Fan-Yagnob coal deposit (Tajikistan), p. 12-23
Ge-bearing cassiterite was found in the sublimates of a natural underground coal fire in the upper reaches of the Kukhi-Malik tract at the Ravat site of the Fan-Yagnob coal deposit (Aininsky district of the Sughd region, Tajikistan). Associated with cassiterite minerals are as follows: Se-bearing greenockite, anglesite, marchaninite (?) TlBi(SO4)2, BiCdS2Cl, Bi2(S,Se)3, Cd2InS3F, Bi3(S,Se)4, In-fluoride. The listed minerals form drop-like aggregates (30–150 µm in diameter), the outer zone of which is composed of small (5–15 µm) pseudocubic cassiterite crystals. Such aggregates most often grow on greenockite crystals. Cassiterite is enriched in germanium (up to 2.3 wt.% GeO2), antimony (up to 4 wt.% Sb2O5), indium (up to 2.5 wt.% In2O3), and is poor in titanium.
Keywords: cassiterite, germanium, greenockite, pseudofumaroles, coal fire, sublimates, Tajikistan, Fan-Yagnob deposit, Kukhi-Malik, Ravat. читать далее...
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Shkursky B.B.
The indicator grain misorientations for cumulate olivine ultramafites. Theoretical analysis, p. 24-37
Two types of the indicator misorientations of contacting olivine grains, expected in texturally mature cumulate dunites, are predicted. The theoretical analysis of misorientations of the both types were calculated using the Rodrigues-Frank space. The calculations of numeric parameters of the first type, corresponding to the face-to-face contacts of euhedral crystals used new formulas for compositions involving infinite Rodrigues-Frank vectors. The misorientations of the first type are mapped in the fundamental zone of the Rodrigues-Frank space by straight line segments. The misorientations of the second type associated with edge-to-face crystal contacts, are mapped in the Rodrigues-Frank space by fragments of second-order doubly ruled surfaces.
Keywords: olivine, cumulate rocks, grain misorientations, Rodrigues-Frank space, EBSD. читать далее...
Issue 2
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Pautov L.A., Mirakov M.A., Karpenko V.Y., Makhmadsharif S., Shodibekov M.A.
Brannerite from the Eastern Pamir, p. 39-50
A crystal of brannerite UTi2O6 weighing 44.5 g was found on the right side of the Kukurt River in the Eastern Pamir (Gorno-Badakhshan, Tajikistan). The mineral is metamict. It gives an X-ray diffraction pattern of a mixture of brannerite, rutile and U3O8 after annealing. The chemical composition of brannerite (average over 10 microprobe analyzes) is calculated on O = 6 apfu on the formula (U+40.68U+60.13Y0.07Th0.05Ce0.01Gd0.01Dy0.01Yb0.01Ca0.01)0.98(Ti1.89Fe+30.13)2.02O6. Density (meas.) 5.40(5) g/cm3. In reflected light it is light gray with moderate reflectivity (reflectance spectrum is given). The mineral is isotropic due to its metamict nature. Reflections in the air are red-brown. Microhardness VHN = 674. Raman spectrums of brannerite and its alteration products are given. The substitution products of brannerite are described briefly.
Keywords: brannerite, metamict mineral, uranium, Kukurt, Gorno-Badakhshan, Tajikistan, Eastern Pamir. читать далее...
