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![Miscellaneous refinement data for <span class="search-highlight">hejtmanite</span>. This work Vrána ...]()
![Miscellaneous refinement data for <span class="search-highlight">hejtmanite</span>. This work Vrána ...]()
![A general view of the crystal structure of <span class="search-highlight">hejtmanite</span> which consists of TS ...]()
![A general view of the crystal structure of <span class="search-highlight">hejtmanite</span> which consists of TS ...]()
![A general view of the crystal structure of <span class="search-highlight">hejtmanite</span> which consists of TS ...]()
![A general view of the crystal structure of <span class="search-highlight">hejtmanite</span> which consists of TS ...]()
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![Variation of Ti H –X P M bond lengths in minerals with the TS block, wh...]()
![The M H –X distances (Å) versus bond-valence sums (excluding Ti and Nb) ...]()
![Ideal structural formulae of the bafertisite-group minerals*, Ti (+ Nb) = 2...]()
![Ideal structural formulae of the bafertisite-group minerals*, Ti (+ Nb) = 2...]()
1-20 OF 201 RESULTS FOR
hejtmanite
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1
Journal Article
From structure topology to chemical composition. XX. Titanium silicates: the crystal structure of hejtmanite, Ba 2 Mn 4 Ti 2 (Si 2 O 7 ) 2 O 2 (OH) 2 F 2 , a Group-II TS-block mineral
Journal: Mineralogical Magazine
Published: 01 August 2016
Mineralogical Magazine (2016) 80 (5): 841–853.
...E. Sokolova; F. Cámara; F. C. Hawthorne; L. A. Pautov Abstract The crystal structure of hejtmanite, Ba 2 Mn 4 Ti 2 (Si 2 O 7 ) 2 O 2 (OH) 2 F 2 , from Mbolve Hill, Mkushi River area, Central Province, Zambia (holotype material) has been refined on a twinned crystal to R 1 = 1.88% on the basis...
FIGURES
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Journal Article
Hejtmanite, a manganese-dominant analogue of bafertisite, a new mineral
Journal: European Journal of Mineralogy
Publisher: GeoScienceWorld Journals
Published: 01 February 1992
European Journal of Mineralogy (1992) 4 (1): 35–43.
Image
Miscellaneous refinement data for hejtmanite. This work Vrána ...
in From structure topology to chemical composition. XX. Titanium silicates: the crystal structure of hejtmanite, Ba 2 Mn 4 Ti 2 (Si 2 O 7 ) 2 O 2 (OH) 2 F 2 , a Group-II TS-block mineral
> Mineralogical Magazine
Published: 01 August 2016
Table 3. Miscellaneous refinement data for hejtmanite. This work Vrána et al. (1992) a (Å) 10.716(2) 10.698(4) b 13.795(3) 13.768(5) c 11.778(2) 11.748(4) α (°) 90.07(3) 90 β 112.24(3) 112.27(2) γ 90.03(3) 90 V (Å 3 ) 1612(2) 1601(2
Image
Miscellaneous refinement data for hejtmanite. This work Vrána ...
in From structure topology to chemical composition. XX. Titanium silicates: the crystal structure of hejtmanite, Ba 2 Mn 4 Ti 2 (Si 2 O 7 ) 2 O 2 (OH) 2 F 2 , a Group-II TS-block mineral
> Mineralogical Magazine
Published: 01 August 2016
Table 3. Miscellaneous refinement data for hejtmanite. This work Vrána et al. (1992) a (Å) 10.716(2) 10.698(4) b 13.795(3) 13.768(5) c 11.778(2) 11.748(4) α (°) 90.07(3) 90 β 112.24(3) 112.27(2) γ 90.03(3) 90 V (Å 3 ) 1612(2) 1601(2
Image
A general view of the crystal structure of hejtmanite which consists of TS ...
in From structure topology to chemical composition. XX. Titanium silicates: the crystal structure of hejtmanite, Ba 2 Mn 4 Ti 2 (Si 2 O 7 ) 2 O 2 (OH) 2 F 2 , a Group-II TS-block mineral
> Mineralogical Magazine
Published: 01 August 2016
Fig. 1. A general view of the crystal structure of hejtmanite which consists of TS and I blocks ( a ) and the details of the structure: the close-packed O sheet of Mn-dominant M O octahedra ( b ), the H sheet of Ti-dominant M H octahedra and Si 2 O 7 groups ( c ), the F atom at the site
Image
A general view of the crystal structure of hejtmanite which consists of TS ...
in From structure topology to chemical composition. XX. Titanium silicates: the crystal structure of hejtmanite, Ba 2 Mn 4 Ti 2 (Si 2 O 7 ) 2 O 2 (OH) 2 F 2 , a Group-II TS-block mineral
> Mineralogical Magazine
Published: 01 August 2016
Fig. 1. A general view of the crystal structure of hejtmanite which consists of TS and I blocks ( a ) and the details of the structure: the close-packed O sheet of Mn-dominant M O octahedra ( b ), the H sheet of Ti-dominant M H octahedra and Si 2 O 7 groups ( c ), the F atom at the site
Image
A general view of the crystal structure of hejtmanite which consists of TS ...
in From structure topology to chemical composition. XX. Titanium silicates: the crystal structure of hejtmanite, Ba 2 Mn 4 Ti 2 (Si 2 O 7 ) 2 O 2 (OH) 2 F 2 , a Group-II TS-block mineral
> Mineralogical Magazine
Published: 01 August 2016
Fig. 1. A general view of the crystal structure of hejtmanite which consists of TS and I blocks ( a ) and the details of the structure: the close-packed O sheet of Mn-dominant M O octahedra ( b ), the H sheet of Ti-dominant M H octahedra and Si 2 O 7 groups ( c ), the F atom at the site
Image
A general view of the crystal structure of hejtmanite which consists of TS ...
in From structure topology to chemical composition. XX. Titanium silicates: the crystal structure of hejtmanite, Ba 2 Mn 4 Ti 2 (Si 2 O 7 ) 2 O 2 (OH) 2 F 2 , a Group-II TS-block mineral
> Mineralogical Magazine
Published: 01 August 2016
Fig. 1. A general view of the crystal structure of hejtmanite which consists of TS and I blocks ( a ) and the details of the structure: the close-packed O sheet of Mn-dominant M O octahedra ( b ), the H sheet of Ti-dominant M H octahedra and Si 2 O 7 groups ( c ), the F atom at the site
Journal Article
From Structure Topology To Chemical Composition. Xix. Titanium Silicates: Revision of the Crystal Structure and Chemical Formula of Bafertisite, Ba 2 Fe 2+ 4 Ti 2 (Si 2 O 7 ) 2 O 2 (OH) 2 F 2 , a Group-ii Ts-block Mineral
Journal: The Canadian Mineralogist
Publisher: Mineralogical Association of Canada
Published: 01 January 2016
The Canadian Mineralogist (2016) 54 (1): 49–63.
... . There are 35 basic TS-block and five derivative TS-block structures. In the crystal structure of bafertisite, the TS block has the stereochemistry and topology of Group II where Ti (+ Nb) = 2 apfu . Bafertisite is the Fe 2+ -analogue of hejtmanite and is related to cámaraite ( Table 1 ). The O(1–14...
FIGURES
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Journal Article
From Structure Topology To Chemical Composition. Xxi. Understanding the Crystal Chemistry of Barium in Ts-block Minerals
Journal: The Canadian Mineralogist
Publisher: Mineralogical Association of Canada
Published: 01 January 2016
The Canadian Mineralogist (2016) 54 (1): 79–95.
... structures where the I block is composed of just one close-packed layer of Ba (or Ba + K + Na) and where this layer is associated with [6]-coordinated Ti (+ Nb) in the H sheets, the apical X P M anions of Ti occur in this layer of cations and they are bonded to Ba (bafertisite, hejtmanite...
FIGURES
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Journal Article
Surkhobite: revalidation and redefinition with the new formula, (Ba, K) 2 CaNa(Mn, Fe 2+ , Fe 3+ ) 8 Ti 4 (Si 2 O 7 ) 4 O 4 (F, OH, O) 6
Journal: European Journal of Mineralogy
Publisher: GeoScienceWorld Journals
Published: 01 April 2008
European Journal of Mineralogy (2008) 20 (2): 289–295.
.... The remaining F atoms are located at shared vertices of three (Fe, Mn) octahedra of the O -layer. The ordering of OH and F in surkhobite is in agreement with the IR spectrum: unlike bafertisite and hejtmanite, surkhobite shows only one band of O-H-stretching vibrations. The distribution of Mn and Fe...
FIGURES
Journal Article
FROM STRUCTURE TOPOLOGY TO CHEMICAL COMPOSITION. I. STRUCTURAL HIERARCHY AND STEREOCHEMISTRY IN TITANIUM DISILICATE MINERALS
Journal: The Canadian Mineralogist
Publisher: Mineralogical Association of Canada
Published: 01 December 2006
The Canadian Mineralogist (2006) 44 (6): 1273–1330.
..., murmanite, epistolite, bafertisite, hejtmanite, innelite, lomonosovite, vuonnemite, quadruphite, polyphite and sobolevite, as a unique series of structures based on the TS block, and they emphasized the importance of the TS block as a basic structural unit. Later, this particular series was considered...
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Journal Article
From Structure Topology To Chemical Composition. Xxii. Titanium Silicates: Revision of the Crystal Structure of Jinshajiangite, NaBaFe 2+ 4 Ti 2 (Si 2 O 7 ) 2 O 2 (OH) 2 F, a Group-ii Ts-block Mineral
Journal: The Canadian Mineralogist
Publisher: Mineralogical Association of Canada
Published: 01 September 2016
The Canadian Mineralogist (2016) 54 (5): 1187–1204.
... (the perraultite structure-type); bafertisite and hejtmanite (bafertisite structure-type); and cámaraite (related to the perraultite and bafertisite structure-types) are presented in Table 1 . Six minerals (excluding cámaraite) have basic structures in accord with Sokolova & Cámara (2013) . Cámaraite has...
FIGURES
Journal Article
Cámaraite, Ba 3 NaTi 4 (Fe 2+ ,Mn) 8 (Si 2 O 7 ) 4 O 4 (OH,F) 7 . I. A new Ti-silicate mineral from the Verkhnee Espe Deposit, Akjailyautas Mountains, Kazakhstan
Journal: Mineralogical Magazine
Published: 01 October 2009
Mineralogical Magazine (2009) 73 (5): 847–854.
... rare-element deposit . International Conference Satpaev's Lecturing: Geology, minerageny and future trends of mineral resources development. Proceedings , Almaty , 248 – 258 . Vrána , S. , Rieder , M. and Gunter , M.E. ( 1992 ) Hejtmanite, a manganese-dominant analogue...
FIGURES
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Journal Article
The seidozerite supergroup of TS-block minerals: nomenclature and classification, with change of the following names: rinkite to rinkite-(Ce), mosandrite to mosandrite-(Ce), hainite to hainite-(Y) and innelite-1 T to innelite-1 A
Journal: Mineralogical Magazine
Published: 01 December 2017
Mineralogical Magazine (2017) 81 (6): 1457–1484.
... Bafertisite Semenov and Zhang Peishan (1959) Ba 2 Ti 2 (Si 2 O 7 ) 2 O 2 (OH) 2 F 2 Ba 2 Ti 2 (Si 2 O 7 ) 2 O 2 (OH) 2 F 2 4 (14) Hejtmanite Vrána et al. (1992) Ba 2 Mn 4 Ti 2 (Si 2 O 7 ) 2 O 2 (OH) 2 F 2 Ba 2 Mn 4 Ti 2 (Si 2 O 7 ) 2 O 2 (OH) 2 F 2 4 (15) General formula (Si 2...
FIGURES
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Journal Article
Polysomatic Aspects of Microporous Minerals – Heterophyllosilicates, Palysepioles and Rhodesite-Related Structures
Publisher: Mineralogical Society of America
Published: 01 January 2005
Reviews in Mineralogy and Geochemistry (2005) 57 (1): 69–104.
... Bafertisite a Ba 2 {(Fe,Mn) 4 [Ti 2 O 2 (O,OH) 2 Si 4 O 14 ](O,OH) 2 } 11.73 Cm Guan et al. 1963 Hejtmanite a Ba 2 {(Mn,Fe) 4 [Ti 2 (O,OH) 4 Si 4 O 14 ](OH,F) 2 } 11.77 Cm Rastsvetaeva et al. 1991 Epistolite b (Na, □) 2 {(Na,Ti) 4 [Nb 2 (O,H 2 O) 4 Si 4 O 14 ](OH,F) 2 }•2H 2 O...
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Image
Variation of Ti H –X P M bond lengths in minerals with the TS block, wh...
in FROM STRUCTURE TOPOLOGY TO CHEMICAL COMPOSITION. II. TITANIUM SILICATES: REVISION OF THE CRYSTAL STRUCTURE AND CHEMICAL FORMULA OF DELINDEITE
> The Canadian Mineralogist
Published: 01 October 2007
correspond to X P M = O 2− , OH − and H 2 O, respectively. Dashed green and red lines indicate minimal values of bond lengths for Ti H –H 2 O and Ti H –OH. Yellow bars indicate delindeite (this work). Data are reported for bafertisite ( Guan et al . 1963 ), hejtmanite ( Rastsvetaeva et al. 1991
Image
The M H –X distances (Å) versus bond-valence sums (excluding Ti and Nb) ...
in FROM STRUCTURE TOPOLOGY TO CHEMICAL COMPOSITION. I. STRUCTURAL HIERARCHY AND STEREOCHEMISTRY IN TITANIUM DISILICATE MINERALS
> The Canadian Mineralogist
Published: 01 December 2006
F ig . 31. The M H –X distances (Å) versus bond-valence sums (excluding Ti and Nb) at X anions ( vu ), M H = Ti, Nb (a). A schematic representation of the topology of the M H site (b). Data for Group II (bussenite, hejtmanite-P and yoshimuraite), Group III (epistolite, vuonnemite
Image
Ideal structural formulae of the bafertisite-group minerals*, Ti (+ Nb) = 2...
in The seidozerite supergroup of TS-block minerals: nomenclature and classification, with change of the following names: rinkite to rinkite-(Ce), mosandrite to mosandrite-(Ce), hainite to hainite-(Y) and innelite-1 T to innelite-1 A
> Mineralogical Magazine
Published: 01 December 2017
(Si 2 O 7 ) 2 O 2 (OH) 2 F 2 4 Hejtmanite Ba 2 Mn 4 Ti 2 (Si 2 O 7 ) 2 O 2 (OH) 2 F 2 4 Yoshimuraite Ba 2 Ba 2 Mn 4 [5] Ti 2 (Si 2 O 7 ) 2 (PO 4 ) 2 O 2 (OH) 2 2 Bussenite Ba 2 Ba 2 (Na□) 2 (Fe 2+ Na) 2 Ti 2
Image
Ideal structural formulae of the bafertisite-group minerals*, Ti (+ Nb) = 2...
in The seidozerite supergroup of TS-block minerals: nomenclature and classification, with change of the following names: rinkite to rinkite-(Ce), mosandrite to mosandrite-(Ce), hainite to hainite-(Y) and innelite-1 T to innelite-1 A
> Mineralogical Magazine
Published: 01 December 2017
(Si 2 O 7 ) 2 O 2 (OH) 2 F 2 4 Hejtmanite Ba 2 Mn 4 Ti 2 (Si 2 O 7 ) 2 O 2 (OH) 2 F 2 4 Yoshimuraite Ba 2 Ba 2 Mn 4 [5] Ti 2 (Si 2 O 7 ) 2 (PO 4 ) 2 O 2 (OH) 2 2 Bussenite Ba 2 Ba 2 (Na□) 2 (Fe 2+ Na) 2 Ti 2
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