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kyzylkumite

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Journal Article

Kyzylkumite, Ti 2 V 3+ O 5 (OH): new structure type, modularity and revised formula

T. Armbruster, B. Lazic, L. Z. Reznitsky, E. V. Sklyarov
Published: 01 February 2013
Mineralogical Magazine (2013) 77 (1): 33–44.
DOI: https://doi.org/10.1180/minmag.2013.077.1.04
...T. Armbruster; B. Lazic; L. Z. Reznitsky; E. V. Sklyarov Abstract The crystal structure of kyzylkumite, ideally Ti 2 V 3+ O 5 (OH), from the Sludyanka complex in South Baikal, Russia was solved and refined (including the hydrogen atom position) to an agreement index, R 1 , of 2.34% using X-ray...
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Journal Article

THE CRYSTAL STRUCTURE OF (Be,□)(V,Ti) 3 O 6 , A MINERAL RELATED TO KYZYLKUMITE

Gunnar Raade, Tonči Balić-Žunić
Published: 01 October 2006
The Canadian Mineralogist (2006) 44 (5): 1147–1158.
DOI: https://doi.org/10.2113/gscanmin.44.5.1147
... correspond to those described originally for kyzylkumite, supposed to be V 2 Ti 3 O 9 . The crystal-lattice parameters found earlier for kyzylkumite can be explained as based on an 8 × supercell obtained on a {210} reflection twin. This type of twinning is characteristic for the Byrud mineral, and is present...
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Structural relationship between the Be-bearing kyzylkumite-like mineral with the norbergite-type structure (Raade and Balić-Žunić, 2006) and kyzylkumite (this study). Omitting the yellow Be tetrahedra in the structure of the kyzylkumite-like mineral and shifting (arrow) the octahedra marked by white circles to the red squares yields the topology of the kyzylkumite structure determined in this paper. In a comparison with Fig. 4 (kyzylkumite) the staggered arrangement of the chain fragments of six octahedra becomes apparent after the modification.

Structural relationship between the Be-bearing kyzylkumite-like mineral wit...

Published: 01 February 2013
F ig . 6. Structural relationship between the Be-bearing kyzylkumite-like mineral with the norbergite-type structure ( Raade and Balić-Žunić, 2006 ) and kyzylkumite (this study). Omitting the yellow Be tetrahedra in the structure of the kyzylkumite-like mineral and shifting (arrow) the octahedra
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X-ray powder patterns using CuKα radiation (a) calculated from structural data for the kyzylkumite-like mineral (Be,□)(V,Ti)3O6 by Raade and Balić-Žunić (2006); (b) measured by Smyslova et al. (1981) for kyzylkumite from the type locality; and (c) calculated from structural data for kyzylkumite from Sludyanka.

X-ray powder patterns using Cu K α radiation ( a ) calculated from structur...

Published: 01 February 2013
F ig . 1. X-ray powder patterns using Cu K α radiation ( a ) calculated from structural data for the kyzylkumite-like mineral (Be,□)(V,Ti) 3 O 6 by Raade and Balić-Žunić ( 2006 ); ( b ) measured by Smyslova et al. ( 1981 ) for kyzylkumite from the type locality; and ( c ) calculated from
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Interpretation of the structure of tivanite and kyzylkumite as derivatives of the rutile-structure type (Grey and Nickel, 1981). Repeated antiphase operations ½[013](03İ1) (referring to the rutile structure-type) indicated by dashed lines lead to intercalated modular slices of the diaspore-structure type, which is described as montroseite [i.e. V3+O(OH)] herein. In tivanite the rutile:montroseite ratio is 1:1; it is 2:1 in kyzylkumite.

Interpretation of the structure of tivanite and kyzylkumite as derivatives ...

Published: 01 February 2013
F ig . 4. Interpretation of the structure of tivanite and kyzylkumite as derivatives of the rutile-structure type ( Grey and Nickel, 1981 ). Repeated antiphase operations ½[013](03İ1) (referring to the rutile structure-type) indicated by dashed lines lead to intercalated modular slices
Journal Article

Byrudite, (Be,□)(V 3+ ,Ti) 3 O 6 , a new mineral from the Byrud emerald mine, South Norway

G. Raade, T. Balić-žunić, C. J. Stanley
Published: 01 April 2015
Mineralogical Magazine (2015) 79 (2): 261–268.
DOI: https://doi.org/10.1180/minmag.2015.079.2.05
...)(230), 2.167(24)(231), 1.681(34)(402), 1.671(66)(232), 1.435(23)(630). © 2015 The Mineralogical Society 2015 byrudite new mineral beryllium mineral kyzylkumite Byrud emerald mine Norway Sample XR 1990, consisting of a single grain, is peculiar in having a relatively small amount...
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X-RAY POWDER-DIFFRACTION DATA OF THE BYRUD MINERAL AND KYZYLKUMITE

Published: 01 October 2006
TABLE 2. X-RAY POWDER-DIFFRACTION DATA OF THE BYRUD MINERAL AND KYZYLKUMITE
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Hydrogen bonding in kyzylkumite: in the diaspore-like channels of the montroseite module, H5 has trifurcated hydrogen bonds to O4, O5 and O6. The V3+ octahedra are green and the Ti4+ octahedra are grey.

Hydrogen bonding in kyzylkumite: in the diaspore-like channels of the montr...

Published: 01 February 2013
F ig . 5. Hydrogen bonding in kyzylkumite: in the diaspore-like channels of the montroseite module, H5 has trifurcated hydrogen bonds to O4, O5 and O6. The V 3+ octahedra are green and the Ti 4+ octahedra are grey.
Journal Article

New Mineral Names

Paula C. Piilonen, Andrew J. Locock, Ralph Rowe, T. Scott Ercit
Published: 01 April 2007
American Mineralogist (2007) 92 (4): 703–707.
DOI: https://doi.org/10.2138/am.2007.488
...Paula C. Piilonen; Andrew J. Locock; Ralph Rowe; T. Scott Ercit † E-mail: [email protected] © 2007 American Mineralogist 2007 G. Raade, T. Balic-Žunic (2006) The crystal structure of (Be,□)(V,Ti) 3 O 6 , a mineral related to kyzylkumite. Can. Mineral., 44, 1147–1158...
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Crystal structure of kyzylkumite (this study), projected along b: green octahedra (M3) represent V3+ sites and grey octahedra (M1 and M2) are enriched in Ti. Only one (010) layer is shown in the upper figure with transparent octahedra allowing insight into polyhedral distortions; hydrogen bonds are indicated by dashed blue lines. Two (010) layers are shown in the lower figure. Octahedra in the upper layer have white rims, those in the lower layer have grey rims, unit-cell outlines are shown in yellow.

Crystal structure of kyzylkumite (this study), projected along b : green o...

Published: 01 February 2013
F ig . 3. Crystal structure of kyzylkumite (this study), projected along b : green octahedra (M3) represent V 3+ sites and grey octahedra (M1 and M2) are enriched in Ti. Only one (010) layer is shown in the upper figure with transparent octahedra allowing insight into polyhedral distortions
Journal Article

Schreyerite, V 2 Ti 3 O 9 : New occurrence and crystal structure

Nicola Döbelin, Leonid Z. Reznitsky, Evgeny V. Sklyarov, Thomas Armbruster, Olaf Medenbach
Published: 01 January 2006
American Mineralogist (2006) 91 (1): 196–202.
DOI: https://doi.org/10.2138/am.2006.1893
... unanswered questions concerning the binary system V 2 O 3 -TiO 2 , particularly under geologically relevant P and T conditions. Smyslova et al. (1982) reported a monoclinic dimorph of schreyerite, named kyzylkumite, with a = 33.80, b = 4.578, c = 19.99 Å, β = 93.4° (as determined by Laue...
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Journal Article

ERRATA

Published: 01 December 2006
The Canadian Mineralogist (2006) 44 (6): 1565–1566.
DOI: https://doi.org/10.2113/gscanmin.44.6.1565
... In the article on the crystal structure of (Be,□) (V,Ti) 3 O 6 , a mineral related to kyzylkumite, by Gunnar Raade and Tonči Balić-Žunić ( Can. Mineral. 44 , 1147–1158 ), Figure 6 (page 1157 ) was submitted for printing in color. Owing to an error in the printing establishment...
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Projection of the reciprocal lattices of a hypothetical triple twin of (Be,□)(V,Ti)3O6. The same coloring for the twin components as in Figure 5 is used. A twinned crystal simulates a lattice with 8(larger (crystal-)unit cell, the reciprocal periods of which are shown in addition. The relation between the lattice periods previously reported for kyzylkumite (ao, bo, co) and those found in the present work for the Byrud mineral (an, bn, cn) is: ao = 4bn, bo= cn, co = 2an.

Projection of the reciprocal lattices of a hypothetical triple twin of (Be,...

Published: 01 October 2006
. The relation between the lattice periods previously reported for kyzylkumite ( a o , b o , c o ) and those found in the present work for the Byrud mineral ( a n , b n , c n ) is: a o = 4 b n , b o = c n , c o = 2 a n .
Journal Article

The Vanadium-bearing Oxide Minerals of the Green Giant Vanadium-graphite Deposit, Southwest Madagascar

Veronica E. Di Cecco, Kimberly T. Tait, Edward T.C. Spooner, Craig Scherba
Published: 30 May 2018
The Canadian Mineralogist (2018) 56 (3): 247–257.
DOI: https://doi.org/10.3749/canmin.1700068
... by Raman spectroscopy. However, a possibility does still exist that OH stretching bands are broad enough to be below the detection limit of the instrument. Therefore, the formula may also be expressed as Ti 2 V 4+ 2 V 3+ 2 O 10 (OH) 2 . Calculated formulae do not match that of kyzylkumite, Ti 4 V 3+ 2 O...
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Journal Article

New minerals and nomenclature modifications approved in 2013

P. A. WILLIAMS, F. HATERT, M. PASERO, S. J. MILLS
Published: 01 October 2013
Mineralogical Magazine (2013) 77 (7): 2997–3005.
DOI: https://doi.org/10.1180/minmag.2013.077.7.09
... Minnesund, Eidsvoll municipality, Akershus County, Norway (60°24′48″N 11°11′52″E) Gunnar Raade*, Tonči Balić-Žunić and Chris J. Stanley *E-mail: [email protected] Related to kyzylkumite and tivanite Orthorhombic: Pnma ; structure determined a = 9.982(1), b = 8.502(1), c = 4.5480...
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Journal Article

New Mineral Names,

Olivier C. Gagne, Dmitriy I. Belakovskiy, Fernando Cámara
Published: 01 May 2016
American Mineralogist (2016) 101 (5): 1240–1243.
DOI: https://doi.org/10.2138/am-2016-NMN101511
..., T. Balić-Žunić, and C.J. Stanley (2015) Byrudite, (Be,□)(V 3+ ,Ti) 3 O 6 , a new mineral from the Byrud emerald mine, South Norway. Mineralogical Magazine, 79(2), 261–268. Raade, G. and Balić-Žunić, T. (2006) The crystal structure of (Be,□)(V,Ti) 3 O 6 , a mineral related to kyzylkumite...
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Journal Article

Beryllium mineral evolution

Edward S. Grew, Robert M. Hazen
Published: 01 May 2014
American Mineralogist (2014) 99 (5-6): 999–1021.
DOI: https://doi.org/10.2138/am.2014.4675
...+ , Ti) 3 O 6 Oxide cf. kyzylkumite, tivanite h 109 a Be107 Uralolite Ca 2 Be 4 (PO 4 ) 3 (OH) 3 ·5H 2 O Phosphate 564 Be108 Väyrynenite BeMn 2+ PO 4 (OH) Phosphate 133 Vinogradovite Not a Be mineral; see text Be109 Wawayandaite Ca 6 Be 9 (Mn 2+ ) 2 BSi 6 O 23 (OH,Cl...
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