Минералогический Музей им. А.Е. Ферсмана
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Москва, Ленинский проспект 18 корпус 2,
тел. (495) 954-39-00
Journal/NDM48 2013 eng — различия между версиями
Kronrod (обсуждение | вклад) |
Kronrod (обсуждение | вклад) (→New Minerals and Their Varieties, New Finds of Rare Minerals, Mineral Paragenesis) |
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| Авторы = Agakhanov A.A., Pautov L.A., Uvarova Yu.А., Sokolova E.V., Hawthorne F.C., Karpenko V.Yu. | | Авторы = Agakhanov A.A., Pautov L.A., Uvarova Yu.А., Sokolova E.V., Hawthorne F.C., Karpenko V.Yu. | ||
| Название = Laptevite-(Ce) NaFe<sub>2</sub><sup>+</sup>(REE<sub>7</sub>Ca<sub>5</sub>Y<sub>3</sub>)(SiO<sub>4</sub>)<sub>4</sub>(Si<sub>3</sub>B<sub>2</sub>PO<sub>18</sub>)(BO<sub>3</sub>)F<sub>11</sub>–new mineral of the vicanite group from the Darai-Pioz alkaline massif, Tajikistan, p. 5 - 11 | | Название = Laptevite-(Ce) NaFe<sub>2</sub><sup>+</sup>(REE<sub>7</sub>Ca<sub>5</sub>Y<sub>3</sub>)(SiO<sub>4</sub>)<sub>4</sub>(Si<sub>3</sub>B<sub>2</sub>PO<sub>18</sub>)(BO<sub>3</sub>)F<sub>11</sub>–new mineral of the vicanite group from the Darai-Pioz alkaline massif, Tajikistan, p. 5 - 11 | ||
| − | | Аннотация = | + | | Аннотация = Laptevite-(Ce) is a new mineral of the vicanite group. It was found in a calcite-bafertisite-aegirine-microcline rock in |
| + | association with stillwellite-(Ce), calcibeborosilite-(Y), fluorite, polylithionite and other minerals at the Darai-Pioz glacier moraine (Tajikistan). Color is dark-brown, in thin plates is transparent. Vitreous luster. It occurs as poorly formed crystals up to 1 cm in size. Mohs’ hardness 4.5–5. Dmeas.=4.61(2)g/cm<sup>3</sup>, D<sub>calc.</sub>=4.619 g/cm<sup>3</sup>. Optically | ||
| + | uniaxial negative, n<sub>o</sub>=1.741(3), n<sub>e</sub>=1.720(3). It is partially metamict. Crystal structure has been refined with R = 3.61%. Hexagonal symmetry, space group R3m, a=10.804(2)Å; b=10.804(2)Å; c=27.726(6)Å; V=2802.7(2)Å3, Z=3. Most intense X-ray powder data lines are as follows [d, (I), (hkl)]: 7.70 (19) (012); 4.41 (29) (202); 3.13 (26) (214); 3.03 (100) (027); 2.982 (85) (125); 2.954 (60) (033); 2.689 (40) (-240); 1.979 (31) (330); 1.770 (21) (-555). IR spectrum (strongest absorption bands, cm–1) 1623, 1437, 1300, 945, 930, 877, 758, 637, 570, 531. Chemical composition (microprobe analysis, wt.%): SiO2 – 15.67, TiO2 – 0.28, ZrO2 – 0.01, ThO2 – 0.38, UO2– 0.65, FeO – 1.48, CaO –11.64, MnO – 1.02, SrO – 0.95, Y2O3 – 11.30, La2O3 – 14.51, Ce2O3 – 16.93, Pr2O3 – 2.76, Nd2O3 – 5.16, Sm<sub>2</sub>O<sub>3</sub> – 0.98, Eu<sub>2</sub>O<sub>3</sub> – 0.10, Gd<sub>2</sub>O<sub>3</sub> – 1.56, Tb<sub>2</sub>O<sub>3</sub> – 0.29, Dy<sub>2</sub>O<sub>3</sub> – 1.37, Tm<sub>2</sub>O<sub>3</sub> – 0.17, Yb<sub>2</sub>O<sub>3</sub>, – 0.28, B<sub>2</sub>O<sub>3</sub> – 4.98, P<sub>2</sub>O<sub>5</sub> – 1.51, Na<sub>2</sub>O – 1.05, F – 8.53, –O=F<sub>2</sub> – 3.59, total – 100.46. The simplified formula is NaFe<sup>2+</sup>(REE<sub>7</sub>Ca<sub>5</sub>Y<sub>3</sub>) | ||
| + | (SiO<sub>4</sub>)<sub>4</sub>(Si<sub>3</sub>B<sub>2</sub>PO<sub>18</sub>)(BO<sub>3</sub>)F<sub>11</sub>. The mineral is named in honor of Tatyana Mikhaylovna Lapteva (1928–2011), the Soviet geologist, petrographer, who made a major contribution to geological study of Central Asia. | ||
| Файл = NDM_2013_48_Agakhanov_eng.pdf | | Файл = NDM_2013_48_Agakhanov_eng.pdf | ||
}} {{NDM_article | }} {{NDM_article | ||
Версия 20:49, 30 декабря 2017
New Data on Minerals. 2013. Volume 48. 162 pages, 128 photos, drawings and schemes.
Publication of Institution of Russian Academy of Sciences, FersmanMineralogicalMuseum RAS.
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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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Agakhanov A.A., Pautov L.A., Uvarova Yu.А., Sokolova E.V., Hawthorne F.C., Karpenko V.Yu.
Laptevite-(Ce) NaFe2+(REE7Ca5Y3)(SiO4)4(Si3B2PO18)(BO3)F11–new mineral of the vicanite group from the Darai-Pioz alkaline massif, Tajikistan, p. 5 - 11
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Pautov L.A., Karpenko V.Yu., Agakhanov A.A.
Baratovite-katayamalite minerals from the Hodzha-Achkan alcaline massif (Kirgizia), p. 12 - 36
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Spiridonov E.M., Kulikova I.M., Nurmukhametov F.M., Sidorova N.V., Korotaeva N.N., Polenov Y.A., Troshkina A.N.
Cogenetic zircon, monazite, xenotime, and fluorapatite from apopicritic phlogopite-magnesite gumbeites at the Berezovsky gold deposit, Urals, Russia, p. 37 - 55
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Bazarova Y.М., Kryulina G.Y., Garanin V.K.
Polycrystalline clusters of diamond from the Lomonosov deposit, Russia, p. 56 - 59
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Terekhov E.P.,Mozherovsky A.V., Vashchenkova N.G., Barinov N.N.
Authigenic gypsum in rocks at the bottom of Japan and Okhotsk seas, p. 60 - 67