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zircophyllite

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Journal Article
Published: 01 March 2019
The Canadian Mineralogist (2019) 57 (2): 201–213.
...-Hilaire, Québec, Canada. Associated minerals are zircophyllite, kupletskite, astrophyllite, aegirine, analcime, orthoclase, and albite. Laverovite is brown, transparent in thin grains, and has a vitreous luster. Mohs hardness is 3, D calc. = 3.367 g/cm 3 . Laverovite is biaxial (–) with refractive indices...
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Journal Article
Published: 30 January 2018
The Canadian Mineralogist (2018) 56 (1): 3–5.
...Elena Sokolova; Fernando CÁmara; Frank C. Hawthorne; Marco E. Ciriotti Abstract Zircophyllite is redefined as an astrophyllite-group mineral, ideally K 2 NaFe 2+ 7 Zr 2 (Si 4 O 12 ) 2 O 2 (OH) 4 F (Fe 2+ -dominant at C 7 ) (IMA 17-D). Zircophyllite was previously considered to be a kupletskite...
Journal Article
Published: 01 November 2016
The Canadian Mineralogist (2016) 54 (6): 1539–1547.
...Elena Sokolova; Frank C. Hawthorne Abstract Here we report the crystal structure of zircophyllite, ideally K 2 NaFe 2+ 7 Zr 2 (Si 4 O 12 ) 2 O 2 (OH) 4 F, from Mont Saint-Hilaire, Québec, Canada. This is the first determination of the crystal structure of zircophyllite, which was originally...
FIGURES
Journal Article
Published: 01 February 2017
Mineralogical Magazine (2017) 81 (1): 143–153.
..., niobophyllite, zircophyllite, tarbagataite, nalivkinite and bulgakite. In the kupletskite group (HOH blocks connect via D– –D bridges, Mn 2+ is dominant at C 7 ), there are three minerals: kupletskite, niobokupletskite and kupletskite-(Cs). In the devitoite group (HOH blocks do not connect via D– –D bridges...
FIGURES | View All (7)
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CHEMICAL COMPOSITION AND UNIT FORMULA FOR <b>ZIRCOPHYLLITE</b> (AFTER SOKOLOVA &amp;am...
Published: 30 January 2018
TABLE 1. CHEMICAL COMPOSITION AND UNIT FORMULA FOR ZIRCOPHYLLITE (AFTER SOKOLOVA & HAWTHORNE 2016)
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CHEMICAL COMPOSITION AND UNIT FORMULA FOR <b>ZIRCOPHYLLITE</b>
Published: 01 November 2016
TABLE 2. CHEMICAL COMPOSITION AND UNIT FORMULA FOR ZIRCOPHYLLITE
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MISCELLANEOUS REFINEMENT DATA FOR <b>ZIRCOPHYLLITE</b>
Published: 01 November 2016
TABLE 3. MISCELLANEOUS REFINEMENT DATA FOR ZIRCOPHYLLITE
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ATOM COORDINATES AND DISPLACEMENT PARAMETERS (Å 2 ) FOR <b>ZIRCOPHYLLITE</b>
Published: 01 November 2016
TABLE 4. ATOM COORDINATES AND DISPLACEMENT PARAMETERS (Å 2 ) FOR ZIRCOPHYLLITE
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SELECTED INTERATOMIC DISTANCES (Å) AND ANGLES (°) FOR <b>ZIRCOPHYLLITE</b>
Published: 01 November 2016
TABLE 5. SELECTED INTERATOMIC DISTANCES (Å) AND ANGLES (°) FOR ZIRCOPHYLLITE
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HYDROGEN BONDING IN <b>ZIRCOPHYLLITE</b>
Published: 01 November 2016
TABLE 7. HYDROGEN BONDING IN ZIRCOPHYLLITE
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SELECTED BOND-VALENCE VALUES* FOR <b>ZIRCOPHYLLITE</b>
Published: 01 November 2016
TABLE 8. SELECTED BOND-VALENCE VALUES* FOR ZIRCOPHYLLITE
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The crystal structure of <b>zircophyllite</b>: (a) O and H sheets; (b) general vie...
Published: 01 November 2016
Fig. 1. The crystal structure of zircophyllite: (a) O and H sheets; (b) general view of the structure. The Fe 2+ -dominant and Zr-dominant octahedra are green and yellow, respectively; Si tetrahedra are orange; K and Na atoms at A and B sites are shown as large green and medium navy blue
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REFINED SITE-SCATTERING VALUES AND ASSIGNED SITE-POPULATIONS FOR ZIRCOPHYLL...
Published: 01 November 2016
TABLE 6. REFINED SITE-SCATTERING VALUES AND ASSIGNED SITE-POPULATIONS FOR ZIRCOPHYLLITE
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Diagram depicting members of the astrophyllite group on the basis of the pr...
Published: 01 February 2003
F ig . 5c. Diagram depicting members of the astrophyllite group on the basis of the predominant cation at D. Kpt: kupletskite, Zrt: zircophyllite, Nbkpt: niobokupletskite, Fe–Zrt: Fe-dominant analogue of zircophyllite, Nbt: niobophyllite, Ast: astrophyllite.
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Ti-Nb-Zr relationships in selected Fe-dominant members of the astrophyllite...
Published: 01 February 2007
F ig . 5. Ti-Nb-Zr relationships in selected Fe-dominant members of the astrophyllite group. ‘Fe-zircophyllite’ is a potentially new species ( Piilonen et al. , 2003 ), not yet IMA-approved; strictly, it should be referred to as the ‘Fe-dominant analogue of zircophyllite’, as in Table 1
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Detailed ideal formulae of the form A 2p B r C 7 D 2 (T 4 O 12 ) 2 I   W A2...
Published: 01 February 2017
   Astrophyllite K 2 Na Ti 2 (Si 4 O 12 ) 2 O 2 (OH) 4 F 1 1 1  Niobophyllite K 2 Na (Nb,Ti) 2 (Si 4 O 12 ) 2 O 2 (OH) 4 (O,F) 1 1 1  Zircophyllite K 2 Na Zr 2 (Si 4 O 12 ) 2 O 2 (OH) 4 F 1 1 1  Tarbagataite (K□) Ca Ti 2 (Si 4 O
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Detailed ideal formulae of the form A 2p B r C 7 D 2 (T 4 O 12 ) 2 I   W A2...
Published: 01 February 2017
   Astrophyllite K 2 Na Ti 2 (Si 4 O 12 ) 2 O 2 (OH) 4 F 1 1 1  Niobophyllite K 2 Na (Nb,Ti) 2 (Si 4 O 12 ) 2 O 2 (OH) 4 (O,F) 1 1 1  Zircophyllite K 2 Na Zr 2 (Si 4 O 12 ) 2 O 2 (OH) 4 F 1 1 1  Tarbagataite (K□) Ca Ti 2 (Si 4 O
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Detailed ideal formulae of the form A 2p B r C 7 D 2 (T 4 O 12 ) 2 I   W A2...
Published: 01 February 2017
   Astrophyllite K 2 Na Ti 2 (Si 4 O 12 ) 2 O 2 (OH) 4 F 1 1 1  Niobophyllite K 2 Na (Nb,Ti) 2 (Si 4 O 12 ) 2 O 2 (OH) 4 (O,F) 1 1 1  Zircophyllite K 2 Na Zr 2 (Si 4 O 12 ) 2 O 2 (OH) 4 F 1 1 1  Tarbagataite (K□) Ca Ti 2 (Si 4 O
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Detailed ideal formulae of the form A 2p B r C 7 D 2 (T 4 O 12 ) 2 I   W A2...
Published: 01 February 2017
   Astrophyllite K 2 Na Ti 2 (Si 4 O 12 ) 2 O 2 (OH) 4 F 1 1 1  Niobophyllite K 2 Na (Nb,Ti) 2 (Si 4 O 12 ) 2 O 2 (OH) 4 (O,F) 1 1 1  Zircophyllite K 2 Na Zr 2 (Si 4 O 12 ) 2 O 2 (OH) 4 F 1 1 1  Tarbagataite (K□) Ca Ti 2 (Si 4 O
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Detailed ideal formulae of the form A 2p B r C 7 D 2 (T 4 O 12 ) 2 I   W A2...
Published: 01 February 2017
   Astrophyllite K 2 Na Ti 2 (Si 4 O 12 ) 2 O 2 (OH) 4 F 1 1 1  Niobophyllite K 2 Na (Nb,Ti) 2 (Si 4 O 12 ) 2 O 2 (OH) 4 (O,F) 1 1 1  Zircophyllite K 2 Na Zr 2 (Si 4 O 12 ) 2 O 2 (OH) 4 F 1 1 1  Tarbagataite (K□) Ca Ti 2 (Si 4 O