Ferro-pedrizite, NaAl2(Fe2+2Al2Li)Si8O22(OH)2,a new amphibole-supergroup mineral from the Sutlug pegmatite, Tyva Republic, Russia /S. I. Konovalenko, S. A. Ananyev, N. V. Chukanov [et.al.]

Электронный ресурс
Другой Автор
Konovalenko, Sergey I. 1947-2016
Chukanov, Nikita V.
Aksenov, Sergey M.
Rastsvetaeva, Ramiza K.
Bakhtin, Anatoliy I.
Nikolaev, Anatoliy G.
Gainov, Ramil R.
Vagizov, Farit G.
Sapozhnikov, Anatoliy N.
Ananyev, Sergey A.
Belakovskiy, Dmitriy I.
Bychkova, Yana V.
Klingelhofer, Gostar
Blumers, Mathias
Источник
European journal of mineralogy 2015 Vol. 27, № 3. P. 417-426
Аннотация
Ferro-pedrizite, a new amphibole-supergroup mineral was discovered in the Sutlug pegmatite occurrence situated in the Targi River Basin, Tyva Republic, Eastern Sibera, Russia. The associated minerals are quartz, albite, microcline, spodumene, cassiterite, beryl, columbite-(Mn), fergusonite-b-(Y), fluorapatite, schorl, trilithionite and fluorite. Ferro-pedrizite forms dark grey-blue to violet-blue acicular and long prismatic crystals up to 2 5 50 mm and their aggregates. Dmeas ¼ 3.16(1) g/cm3 (by hydrostatic weighing), 3.13(1) g/cm3 (by flotation in heavy liquids); Dcalc ¼ 3.135 g/cm3. Ferro-pedrizite is optically biaxial (–), a ¼ 1.614(3), b ¼ 1.638(3), g ¼ 1.653(3), 2Vmeas ¼ 75(5), 2Vcalc ¼ 76. The infrared spectrum is given. The chemical composition is (EDS-mode electron microprobe, the ratio Fe2þ:Fe3þ by Mo¨ssbauer data, Li by ICP-MS, H2O by gas chromatography of ignition products, F bywet analysis,wt. %): Li2O4.67,Na2O2.54,K2O 0.13, MgO 4.48, CaO 0.29, MnO 0.59, FeO 9.06, Al2O3 13.13, Fe2O3 4.60, SiO2 57.59, F 1.15, H2O 1.50, -O ¼ F –0.48, total 99.25. The empirical formula based on 24 anions is: Na0.60K0.02)P0.62(Li1.89Na0.07Ca0.04)P2.00(Fe2þ1.03Mg0.90Mn2þ0.07Al1.88Fe3þ0.47Li0.65)P5.00 [(Si7.79Al0.21)P8.00O22][(OH)1.36F0.49O0.15)]. The simplified formula is NaLi2(Fe2þ2Al2Li)Si8O22(OH)2. Ferro-pedrizite is monoclinic, C2/m, a ¼ 9.3716(4), b ¼ 17.649(1), c ¼ 5.2800(6) A ° , b ¼ 102.22(1), V ¼ 853.5(1) A ° 3, Z ¼ 2. The structure has been refined to Robs ¼ 3.9 % (4843 I . 2sI). A twinning model was introduced into the refinement through the matrix [–1 0 0/0–1 0/–0.7516 0 1] with the ratio of two twin components of 0.681(3)/0.319(3). The strongest lines of the powder X-ray diffraction pattern [d, A° (I, %) (hkl)] are: 8.147 (52) (110), 4.420 (22), (040), 3.009 (100) (310), 2.7102 (28) (330), 2.6865 (29) (151), 2.6236 (21) (461). Type material is deposited in the Mineralogical Museum of the Tomsk State University, Tomsk, Russia.
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$a Ferro-pedrizite, NaAl2(Fe2+2Al2Li)Si8O22(OH)2,a new amphibole-supergroup mineral from the Sutlug pegmatite, Tyva Republic, Russia $c S. I. Konovalenko, S. A. Ananyev, N. V. Chukanov [et.al.]
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$a Ferro-pedrizite, a new amphibole-supergroup mineral was discovered in the Sutlug pegmatite occurrence situated in the Targi River Basin, Tyva Republic, Eastern Sibera, Russia. The associated minerals are quartz, albite, microcline, spodumene, cassiterite, beryl, columbite-(Mn), fergusonite-b-(Y), fluorapatite, schorl, trilithionite and fluorite. Ferro-pedrizite forms dark grey-blue to violet-blue acicular and long prismatic crystals up to 2  5  50 mm and their aggregates. Dmeas ¼ 3.16(1) g/cm3 (by hydrostatic weighing), 3.13(1) g/cm3 (by flotation in heavy liquids); Dcalc ¼ 3.135 g/cm3. Ferro-pedrizite is optically biaxial (–), a ¼ 1.614(3), b ¼ 1.638(3), g ¼ 1.653(3), 2Vmeas ¼ 75(5), 2Vcalc ¼ 76. The infrared spectrum is given. The chemical composition is (EDS-mode electron microprobe, the ratio Fe2þ:Fe3þ by Mo¨ssbauer data, Li by ICP-MS, H2O by gas chromatography of ignition products, F bywet analysis,wt. %): Li2O4.67,Na2O2.54,K2O 0.13, MgO 4.48, CaO 0.29, MnO 0.59, FeO 9.06, Al2O3 13.13, Fe2O3 4.60, SiO2 57.59, F 1.15, H2O 1.50, -O ¼ F –0.48, total 99.25. The empirical formula based on 24 anions is: Na0.60K0.02)P0.62(Li1.89Na0.07Ca0.04)P2.00(Fe2þ1.03Mg0.90Mn2þ0.07Al1.88Fe3þ0.47Li0.65)P5.00 [(Si7.79Al0.21)P8.00O22][(OH)1.36F0.49O0.15)]. The simplified formula is NaLi2(Fe2þ2Al2Li)Si8O22(OH)2. Ferro-pedrizite is monoclinic, C2/m, a ¼ 9.3716(4), b ¼ 17.649(1), c ¼ 5.2800(6) A ° , b ¼ 102.22(1), V ¼ 853.5(1) A ° 3, Z ¼ 2. The structure has been refined to Robs ¼ 3.9 % (4843 I . 2sI). A twinning model was introduced into the refinement through the matrix [–1 0 0/0–1 0/–0.7516 0 1] with the ratio of two twin components of 0.681(3)/0.319(3). The strongest lines of the powder X-ray diffraction pattern [d, A° (I, %) (hkl)] are: 8.147 (52) (110), 4.420 (22), (040), 3.009 (100) (310), 2.7102 (28) (330), 2.6865 (29) (151), 2.6236 (21) (461). Type material is deposited in the Mineralogical Museum of the Tomsk State University, Tomsk, Russia.
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статьи в журналах
Резюме
Ferro-pedrizite, a new amphibole-supergroup mineral was discovered in the Sutlug pegmatite occurrence situated in the Targi River Basin, Tyva Republic, Eastern Sibera, Russia. The associated minerals are quartz, albite, microcline, spodumene, cassiterite, beryl, columbite-(Mn), fergusonite-b-(Y), fluorapatite, schorl, trilithionite and fluorite. Ferro-pedrizite forms dark grey-blue to violet-blue acicular and long prismatic crystals up to 2 5 50 mm and their aggregates. Dmeas ¼ 3.16(1) g/cm3 (by hydrostatic weighing), 3.13(1) g/cm3 (by flotation in heavy liquids); Dcalc ¼ 3.135 g/cm3. Ferro-pedrizite is optically biaxial (–), a ¼ 1.614(3), b ¼ 1.638(3), g ¼ 1.653(3), 2Vmeas ¼ 75(5), 2Vcalc ¼ 76. The infrared spectrum is given. The chemical composition is (EDS-mode electron microprobe, the ratio Fe2þ:Fe3þ by Mo¨ssbauer data, Li by ICP-MS, H2O by gas chromatography of ignition products, F bywet analysis,wt. %): Li2O4.67,Na2O2.54,K2O 0.13, MgO 4.48, CaO 0.29, MnO 0.59, FeO 9.06, Al2O3 13.13, Fe2O3 4.60, SiO2 57.59, F 1.15, H2O 1.50, -O ¼ F –0.48, total 99.25. The empirical formula based on 24 anions is: Na0.60K0.02)P0.62(Li1.89Na0.07Ca0.04)P2.00(Fe2þ1.03Mg0.90Mn2þ0.07Al1.88Fe3þ0.47Li0.65)P5.00 [(Si7.79Al0.21)P8.00O22][(OH)1.36F0.49O0.15)]. The simplified formula is NaLi2(Fe2þ2Al2Li)Si8O22(OH)2. Ferro-pedrizite is monoclinic, C2/m, a ¼ 9.3716(4), b ¼ 17.649(1), c ¼ 5.2800(6) A ° , b ¼ 102.22(1), V ¼ 853.5(1) A ° 3, Z ¼ 2. The structure has been refined to Robs ¼ 3.9 % (4843 I . 2sI). A twinning model was introduced into the refinement through the matrix [–1 0 0/0–1 0/–0.7516 0 1] with the ratio of two twin components of 0.681(3)/0.319(3). The strongest lines of the powder X-ray diffraction pattern [d, A° (I, %) (hkl)] are: 8.147 (52) (110), 4.420 (22), (040), 3.009 (100) (310), 2.7102 (28) (330), 2.6865 (29) (151), 2.6236 (21) (461). Type material is deposited in the Mineralogical Museum of the Tomsk State University, Tomsk, Russia.