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delindeite

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Journal Article

FROM STRUCTURE TOPOLOGY TO CHEMICAL COMPOSITION. II. TITANIUM SILICATES: REVISION OF THE CRYSTAL STRUCTURE AND CHEMICAL FORMULA OF DELINDEITE

Elena Sokolova, Fernando Cámara
Published: 01 October 2007
The Canadian Mineralogist (2007) 45 (5): 1247–1261.
DOI: https://doi.org/10.2113/gscanmin.45.5.1247
...Elena Sokolova; Fernando Cámara Abstract The crystal structure of delindeite, ideally Ba 2 Na 2 Ti 3 (Si 2 O 7 ) 2 O 2 (OH) 2 (H 2 O) 2 , a 10.6452(9), b 13.713(1), c 21.600(2) Å, β 93.804(3)°, V 3146.15(5) Å 3 , space group C 2/ c , Z = 8, D calc. 3.74 g.cm −3 from Mt. Yuksporr, Khibina...
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THE CRYSTAL STRUCTURE OF DELINDEITE, Ba 2 {(Na,K,□) 3 (Ti,Fe)[Ti 2 (O,OH) 4 Si 4 O 14 ](H 2 O,OH) 2 }, A MEMBER OF THE MERO-PLESIOTYPE BAFERTISITE SERIES

Giovanni Ferraris, Gabriella Ivaldi, Dmitry Yu. Pushcharovsky, Natalia V. Zubkova, Igor V. Pekov
Published: 01 October 2001
The Canadian Mineralogist (2001) 39 (5): 1307–1316.
DOI: https://doi.org/10.2113/gscanmin.39.5.1307
...Giovanni Ferraris; Gabriella Ivaldi; Dmitry Yu. Pushcharovsky; Natalia V. Zubkova; Igor V. Pekov Abstract By using a crystal from a new locality, the structure of delindeite has been refined to R = 0.054 for 703 unique reflections with I > 2σ ( I ). This titanosilicate [ideally Ba 2 {(Na,K,□) 3...
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Experimental Synthesis of the Rare-Earth Fluoride Gagarinite-(Ce) by Fluid-Induced Alteration of Chevkinite-(Ce)

Bogusław Bagiński, Petras Jokubauskas, Witold Matyszczak, Marcin Stachowicz, Jakub Kotowski, Ray MacDonald, Daniel E. Harlov
Published: 20 July 2023
The Canadian Journal of Mineralogy and Petrology (2023) 61 (3): 593–608.
DOI: https://doi.org/10.3749/2200045
... frankdicksonite and a lamprophyllite group mineral identified as delindeite. Electron probe microanalyses are given of all reactant phases. The stability conditions of gagarinite-(Ce) are in accord with those inferred from the only natural occurrence, Strange Lake, Canada. The formation of gagarinite-(Ce...
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CHEMICAL COMPOSITION* AND UNIT FORMULA** OF <span class="search-highlight">DELINDEITE</span>

CHEMICAL COMPOSITION* AND UNIT FORMULA** OF DELINDEITE

Published: 01 October 2007
TABLE 1. CHEMICAL COMPOSITION* AND UNIT FORMULA** OF DELINDEITE
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MISCELLANEOUS DATA RELEVANT TO THE STRUCTURE REFINEMENT OF <span class="search-highlight">DELINDEITE</span>

MISCELLANEOUS DATA RELEVANT TO THE STRUCTURE REFINEMENT OF DELINDEITE

Published: 01 October 2007
TABLE 2. MISCELLANEOUS DATA RELEVANT TO THE STRUCTURE REFINEMENT OF DELINDEITE
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FINAL POSITIONS AND DISPLACEMENT PARAMETERS OF ATOMS IN <span class="search-highlight">DELINDEITE</span>

FINAL POSITIONS AND DISPLACEMENT PARAMETERS OF ATOMS IN DELINDEITE

Published: 01 October 2007
TABLE 3. FINAL POSITIONS AND DISPLACEMENT PARAMETERS OF ATOMS IN DELINDEITE
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SELECTED INTERATOMIC DISTANCES (Å) AND ANGLES (°) IN <span class="search-highlight">DELINDEITE</span>

SELECTED INTERATOMIC DISTANCES (Å) AND ANGLES (°) IN DELINDEITE

Published: 01 October 2007
TABLE 4. SELECTED INTERATOMIC DISTANCES (Å) AND ANGLES (°) IN DELINDEITE
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BOND-VALENCE* TABLE FOR <span class="search-highlight">DELINDEITE</span>

BOND-VALENCE* TABLE FOR DELINDEITE

Published: 01 October 2007
TABLE 6. BOND-VALENCE* TABLE FOR DELINDEITE
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PROPOSED HYDROGEN BONDING FOR <span class="search-highlight">DELINDEITE</span>*

PROPOSED HYDROGEN BONDING FOR DELINDEITE*

Published: 01 October 2007
TABLE 7. PROPOSED HYDROGEN BONDING FOR DELINDEITE*
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The TS block in <span class="search-highlight">delindeite</span>: (a) linkage of M(1) and M(2) octahedra and (Si ...

The TS block in delindeite: (a) linkage of M(1) and M(2) octahedra and (Si ...

Published: 01 October 2007
F ig . 2. The TS block in delindeite: (a) linkage of M(1) and M(2) octahedra and (Si 2 O 7 ) groups in the H sheet, (b) the central C sheet , and (c) linkage of one H sheet with the C sheet; partly occupied sites are not shown. Polyhedra are shown for fully occupied cation sites: yellow for M
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The crystal structure of <span class="search-highlight">delindeite</span> viewed down [100]. Legend as in Figure...

The crystal structure of delindeite viewed down [100]. Legend as in Figure...

Published: 01 October 2007
F ig . 3. The crystal structure of delindeite viewed down [100]. Legend as in Figure 2 ; Ba atoms are shown as fuchsia circles.
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BOND-VALENCE TABLE FOR LOCAL ARRANGEMENTS OF CATIONS IN <span class="search-highlight">DELINDEITE</span>

BOND-VALENCE TABLE FOR LOCAL ARRANGEMENTS OF CATIONS IN DELINDEITE

Published: 01 October 2007
TABLE 8. BOND-VALENCE TABLE FOR LOCAL ARRANGEMENTS OF CATIONS IN DELINDEITE
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View along [100] of the crystal structure of <span class="search-highlight">delindeite</span>. The black circles ...

View along [100] of the crystal structure of delindeite. The black circles ...

Published: 01 January 2005
Figure 10. View along [100] of the crystal structure of delindeite. The black circles represent the disordered bridging oxygen atom that is within the coordination sphere of a Na + cation (blank circles) belonging to the O sheet (see text). Grey circles represent interlayer cations.
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Perspective view of the <span class="search-highlight">delindeite</span> structure. Blue, red and green octahedra...

Perspective view of the delindeite structure. Blue, red and green octahedra...

Published: 01 October 2001
F ig . 1. Perspective view of the delindeite structure. Blue, red and green octahedra represent Ti(1), Ti(2) and Na(2) polyhedra, respectively. Grey and light blue circles represent Na(1) and Ba atoms, respectively. The alternative disordered positions of Na(1), bridging O(2) (black circles
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AVERAGE CHEMICAL COMPOSITION OF <span class="search-highlight">DELINDEITE</span> FROM THE KIROVSKII MINE, KHIBINA...

AVERAGE CHEMICAL COMPOSITION OF DELINDEITE FROM THE KIROVSKII MINE, KHIBINA...

Published: 01 October 2001
TABLE 1. AVERAGE CHEMICAL COMPOSITION OF DELINDEITE FROM THE KIROVSKII MINE, KHIBINA COMPLEX
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INFORMATION ON COLLECTION AND REFINEMENT OF DATA ON <span class="search-highlight">DELINDEITE</span>

INFORMATION ON COLLECTION AND REFINEMENT OF DATA ON DELINDEITE

Published: 01 October 2001
TABLE 2. INFORMATION ON COLLECTION AND REFINEMENT OF DATA ON DELINDEITE
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SELECTED INTERATOMIC DISTANCES (Å) IN THE STRUCTURE OF <span class="search-highlight">DELINDEITE</span>

SELECTED INTERATOMIC DISTANCES (Å) IN THE STRUCTURE OF DELINDEITE

Published: 01 October 2001
TABLE 4. SELECTED INTERATOMIC DISTANCES (Å) IN THE STRUCTURE OF DELINDEITE
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RESULTS OF BOND-STRENGTH CALCULATIONS FOR <span class="search-highlight">DELINDEITE</span>

RESULTS OF BOND-STRENGTH CALCULATIONS FOR DELINDEITE

Published: 01 October 2001
TABLE 5. RESULTS OF BOND-STRENGTH CALCULATIONS FOR DELINDEITE
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“Octahedral” O sheet in <span class="search-highlight">delindeite</span>. Colors of polyhedra as if Figure 1 ;...

“Octahedral” O sheet in delindeite. Colors of polyhedra as if Figure 1 ;...

Published: 01 October 2001
F ig . 2. “Octahedral” O sheet in delindeite. Colors of polyhedra as if Figure 1 ; the two disordered positions of Na(1) are shown.
Journal Article

Lobanovite, K 2 Na( Mg 2 Na)Ti 2 (Si 4 O 12 ) 2 O 2 (OH) 4 , a new mineral of the astrophyllite supergroup and its relation to magnesioastrophyllite

Elena Sokolova, Fernando Cámara, Frank C. Hawthorne, Evgeny I. Semenov, Marco E. Ciriotti
Published: 01 February 2017
Mineralogical Magazine (2017) 81 (1): 175–181.
DOI: https://doi.org/10.1180/minmag.2016.080.088
... where it occurs as elongated bladed crystals, up to 0.04 mm wide and 0.2 mm long, with a straw yellow to orange colour. Associated minerals are shcherbakovite, lamprophyllite, delindeite, wadeite, umbite and kostylevite. Lobanovite is biaxial (–) with refractive indices (λ = 589 nm) α = 1.658, β calc...
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