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mendeleevite

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Journal Article
Published: 01 February 2017
Mineralogical Magazine (2017) 81 (1): 135-141.
...Atali A. Agakhanov; Leonid A. Pautov; Elena Sokolova; Frank C. Hawthorne; Vladimir Yu. Karpenko; Oleg. I. Siidra; Viktor K. Garanin Abstract Mendeleevite-(Nd), (Cs,□) 6 (□,Cs) 6 (□,K) 6 ( REE ,Ca) 30 (Si 70 O 175 )(OH,H 2 O,F) 35 is a new mineral from the Darai-Pioz alkaline massif, Tajikistan...
FIGURES
Journal Article
Published: 01 October 2011
Mineralogical Magazine (2011) 75 (5): 2583-2596.
...E. Sokolova; F. C. Hawthorne; L. A. Pautov; A. A. Agakhanov; V. Yu. Karpenko Abstract The crystal structure of mendeleevite-(Ce), (Cs,□) 6 (□,Cs) 6 (□,K) 6 ( REE ,Ca,□) 30 (Si 70 O 175 ) (H 2 O,OH,F,□) 35 , a new mineral from the moraine of the Darai-Pioz glacier, the Alai mountain ridge, Tien-Shan...
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Journal Article
Published: 01 February 2017
Mineralogical Magazine (2017) 81 (1): 113-122.
...-Pioz river at the intersection of the Turkestansky, Zeravshansky and Alaisky mountain ridges, Tajikistan. It occurs as irregular thin flakes associated with quartz, pectolite, baratovite, fluorite, pekovite, polylithionite, aegirine, leucosphenite, pyrochlore, neptunite, reedmergnerite, mendeleevite...
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Comparison of <b>mendeleevite</b>-(Nd) and <b>mendeleevite</b>-(Ce).            mendeleev...
Published: 01 February 2017
Table 1. Comparison of mendeleevite-(Nd) and mendeleevite-(Ce). mendeleevite-(Nd) mendeleevite-(Ce) Simplified formula (Cs,□) 6 (□,Cs) 6 (□,K) 6 ( REE ,Ca) 30 (Cs,□) 6 (□,Cs) 6 (□,K) 6 ( REE ,Ca,□) 30 (Si 70 O 175 )(OH,H 2 O,F) 35 (Si 70 O 175 )(H 2 O,OH,F,□) 35
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Comparison of <b>mendeleevite</b>-(Nd) and <b>mendeleevite</b>-(Ce).            mendeleev...
Published: 01 February 2017
Table 1. Comparison of mendeleevite-(Nd) and mendeleevite-(Ce). mendeleevite-(Nd) mendeleevite-(Ce) Simplified formula (Cs,□) 6 (□,Cs) 6 (□,K) 6 ( REE ,Ca) 30 (Cs,□) 6 (□,Cs) 6 (□,K) 6 ( REE ,Ca,□) 30 (Si 70 O 175 )(OH,H 2 O,F) 35 (Si 70 O 175 )(H 2 O,OH,F,□) 35
Image
Back-scattered electron image of <b>mendeleevite</b>-(Nd) [Mnd-(Nd)] and associate...
Published: 01 February 2017
Fig. 1. Back-scattered electron image of mendeleevite-(Nd) [Mnd-(Nd)] and associated minerals: pectolite (Pct), quartz (Qz) and sokolovaite (Sok).
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( a ) Tetrahedral substructure in <b>mendeleevite</b>-(Ce), ( b ) central spherica...
Published: 01 April 2013
F ig . 12. ( a ) Tetrahedral substructure in mendeleevite-(Ce), ( b ) central spherical cage, ( c ) its topology and ( d ) polyhedral representation; ( e , f ) topology of polyhedral cages that form three-dimensional silicate framework and ( g ) representation of the structure as a combination
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General view of the crystal structure of <b>mendeleevite</b>-(Ce) projected onto (...
Published: 01 October 2011
F ig . 7. General view of the crystal structure of mendeleevite-(Ce) projected onto (001). The SiO 4 tetrahedra of the cluster and framework are pink and purple; the REE -dominant [8] M(1) and [8] M(2A) and Ca-dominant [10] M(3) polyhedra are green, yellow and blue; Cs atoms at the A (1,2
Journal Article
Published: 01 August 2015
Mineralogical Magazine (2015) 79 (4): 949-963.
... are calcite, pyrochlore-group minerals, reedmergnerite, stillwellite-(Ce), pekovite, zeravshanite, senkevichite, sokolovaite, mendeleevite-(Ce), alamosite, orlovite, leucosphenite and several unknown Cs-silicates. Khvorovite occurs as irregular grains, rarely with square or rectangular sections up to 150 μm...
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Journal Article
Published: 01 July 2015
American Mineralogist (2015) 100 (7): 1502-1508.
... are quartz, pectolite, zeravshanite, mendeleevite-(Ce), fluorite, leucosphenite, a pyrochlore-group mineral, neptunite, telyushenkoite, moskvinite-(Y), and shibkovite. Yusupovite is colorless, transparent with a white streak, has a vitreous luster, and does not fluoresce under ultraviolet light. Cleavage...
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Journal Article
Published: 01 April 2013
Mineralogical Magazine (2013) 77 (3): 275-326.
...F ig . 12. ( a ) Tetrahedral substructure in mendeleevite-(Ce), ( b ) central spherical cage, ( c ) its topology and ( d ) polyhedral representation; ( e , f ) topology of polyhedral cages that form three-dimensional silicate framework and ( g ) representation of the structure as a combination...
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Back-scattered electron image of the intergrowth of khvorovite (1), mendele...
Published: 01 August 2015
F ig . 2. Back-scattered electron image of the intergrowth of khvorovite (1), mendeleevite-(Ce) (2), pectolite (3), quartz (4) and pekovite (5).
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Back-scattered electron image of the intergrowth of khvorovite, pectolite, ...
Published: 01 August 2015
F ig . 3. Back-scattered electron image of the intergrowth of khvorovite, pectolite, quartz, pekovite and mendeleevite-(Ce) ( a ), X-ray maps of the distribution of the specified elements ( b – i ).
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Cage I: ( a ) general view; ( b ) the four positions of cage I in the struc...
Published: 01 October 2011
F ig . 4. Cage I: ( a ) general view; ( b ) the four positions of cage I in the structure of mendeleevite-(Ce). Legend as in Fig. 3 ; SiO 4 tetrahedra of the framework are purple; Cs atom at the [9]-coordinated A (1) site is shown as an orange sphere; Cs–O and Cs–H 2 O bonds are shown as black
Journal Article
Published: 01 April 2014
American Mineralogist (2014) 99 (4): 870-875.
..., pekovite, senkevichite, and mendeleevite-(Ce). The mineral is transparent with a white streak and vitreous luster, and does not fluoresce under ultraviolet light. It is brittle with a conchoidal fracture, and no cleavage or parting was observed. The Mohs hardness is 6–6.5. The measured and calculated...
Journal Article
Published: 01 May 2017
American Mineralogist (2017) 102 (5): 1143-1148.
... for 10 new minerals, including bulgakite, dyrnaesite-(La), eleonorite, gatewayite, joanneumite, mendeleevite-(Nd), morrisonite, nolzeite, packratite, vanarsite and a new data on nalivkinite. A.A. Agakhanov, L.A. Pautov, E. Sokolova, Y.A. Abdu and V.Y. Karpenko (2016) Two astrophyllite-supergroup...
Journal Article
Published: 01 April 2010
Mineralogical Magazine (2010) 74 (2): 375-377.
...) Mendeleevite-(Ce), IMA 2009-092, CNMNC Newsletter, April 2010, page 375; Mineralogical Magazine , 74 , 375–377. Kirchhoffite CsBSi 2 O 6 Darai-Pioz alkaline massif, Darai-Pioz River, Tadzhikistan (39°27′N 70°43′E) Atali A. Agakhanov * , Leonid A. Pautov, Elena Sokolova, Frank C. Hawthorne...
Journal Article
Published: 01 August 2015
Mineralogical Magazine (2015) 79 (4): 941-947.
...., Radica, F., Massimi, F., Balestra, C. and Bracco, R. (2015) Canosioite, IMA 2015-030. CNMNC Newsletter No. 26, August 2015, page 945; Mineralogical Magazine , 79 , 941–947. IMA No. 2015-031 Mendeleevite-(Nd) Cs 6 [(Nd,REE) 23 Ca 7 ](Si 70 O 175 )(OH,F) 19 (H 2 O) 16 Darai-Pioz...
Journal Article
Published: 18 November 2019
The Canadian Mineralogist (2019) canmin.1900038.
.... Kupletskite-(Cs) was the first Cs-bearing mineral described from Darai-Pioz (Yefimov et al. 1971, Ca´mara et al. 2010). In the last five years, five Cs- bearing minerals have been described from Darai- Pioz: odigitriaite, CsNa5Ca5[Si14B2O38]F2 (IMA 2015- 028, Agakhanov et al. 2017a); mendeleevite-(Nd), (Cs...
Journal Article
Published: 01 May 2018
European Journal of Mineralogy (2018) 30 (3): 593-607.
... CsKNaCa 2 TiO[Si 7 O 18 (OH)], a new mineral . New Data Miner. , 40 , 17 – 22 . Agakhanov , A.A. , Pautov , L.A. , Sokolova , E. , Hawthorne , F.C. , Karpenko , V.Yu. , Siidra , O.I. , Garanin , V.K. ( 2017 ): Mendeleevite-(Nd), (Cs,□) 6 (□,Cs) 6 (□,K) 6...
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