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davanite

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Journal Article
Published: 01 October 1987
American Mineralogist (1987) 72 (9-10): 1014-1015.
...Gunnar Raade Abstract Davanite, the Ti analogue of dalyite (K 2 ZrSi 6 O 15 ), was described as a new mineral from Murunski, USSR, by Lazebnik et al. (1984). Wagner and Yelde (1986) have reported the second find of davanite, from Smoky Butte, Montana. X-ray powder data for the Montana davanite...
Journal Article
Published: 01 December 1986
American Mineralogist (1986) 71 (11-12): 1473-1475.
...Christiane Wagner; Danielle Velde Abstract Davanite, a new alkali titanosilicate recently described from Siberia, has been found associated with coexisting orthorhombic and rhombohedral Ca-Sr carbonates in the Smoky Butte lamproite. The new chemical composition and X-ray diffraction pattern agree...
Image
Folded 4.6.8 sheets in the structures of ( a )  armstrongite , ( b )  dalyi...
Published: 01 February 2019
Fig. 21. Folded 4.6.8 sheets in the structures of ( a ) armstrongite , ( b ) dalyite and davanite , and ( c ) sazhinite-(Ce) and sazhinite-(La) .
Image
Plane nets and their associated structures.         Single Nets  Minerals  ...
Published: 01 February 2019
, turkestanite 3.12 2 --------- (4.6.8) 2 (6.8 2 ) 1 armstrongite, dalyite, davanite, sazhinite-(Ce), sazhinite-(La) (5 2 .8) 1 (5.8 2 ) 1 nekoite, okenite, zeravshanite (4.6.10) 4 (6 2 .10) 1 varennesite 4.6.12 pyrosmalite-(Fe), pyrosmalite-(Mn), schallerite, friedelite, mcgillite
Image
Single-layer sheet-silicates based on the 4.8 2 , 4.6.12, (4.6.8) 2 (6.8 2 ...
Published: 01 February 2019
] (H 2 O) 2.5 1:2.50 21 a (32) Dalyite    [(4.6.8) 2 (6.8 2 ) 1 ] 2 (u 2 d 2 )(ududud)(u 4 d 4 ) 1F K 2 Zr [Si 6 O 15 ] 1:2.50 21 b (33) Davanite [(4.6.8) 2 (6.8 2 ) 1 ] 2 (u 2 d 2 )(ududud)(u 4 d 4 ) 1F K 2 Ti [Si 6 O 15 ] 1:2.50 “ (34) Sazhinite-(Ce
Image
Structure hierarchy for sheet-silicate minerals.         Mineral  Formula  ...
Published: 01 February 2019
30 ] (OH) 17 2.50 [4.6.12] 12 P S 20 Armstrongite CaZr [Si 6 O 15 ] (H 2 O) 2.5 2.50 [(4.6.8) 2 (6.8 2 ) 1 ] 2 1F S 21 a Dalyite K 2 Zr [Si 6 O 15 ] 2.50 [(4.6.8) 2 (6.8 2 ) 1 ] 2 1F S 21 b Davanite K 2 Ti [Si 6 O 15 ] 2.50 [(4.6.8) 2 (6.8
Journal Article
Published: 01 January 2011
European Journal of Mineralogy (2011) 23 (1): 85-90.
... davanite, dalyite and armstrongite – contain tetrahedral [Si 6 O 15 ] 6− sheets that are structurally close to those present in the compounds reported in Table 1 ( cf ., Haile & Wuensch, 1997 ; Cámara et al. , 2006 ; Krivovichev, 2009 ). At the same time it is worth to recall that the [Si 6 O 15...
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Journal Article
Published: 01 October 2008
The Canadian Mineralogist (2008) 46 (5): 1207-1213.
... and davanite, together with other more common minerals such as pectolite, aegirine, microcline and quartz ( Reguir 2001 ). Some the characteristic features of the crystal structures of these unusual minerals (canasite, frankamenite, miserite, tinaksite and tokkoite) have been reported by Rozhdestvenskaya &...
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Journal Article
Published: 01 August 2004
The Canadian Mineralogist (2004) 42 (4): 1005-1011.
...- and 8-membered rings of tetrahedra, occurs in crystal structures of armstrongite, Ca Zr [Si 6 O 15 ] (H 2 O) 2.5 ( Kashaev & Sapozhnikov 1978 ), dalyite, K 2 Zr [Si 6 O 15 ] ( Fleet 1965 ), and davanite, K 2 Ti 4+ [Si 6 O 15 ] ( Gebert 1983 ). Figure 4 shows the distribution of minerals...
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Journal Article
Published: 01 October 2000
American Mineralogist (2000) 85 (10): 1516-1520.
... with substantially unequal bonds Ti-O. The other examples of Zr- and Ti-containing isostructural minerals are: wadeite, K 2 ZrSi 3 O 9 , and natural Ti-wadeite, K 2 TiSi 3 O 9 , described by Kim and Pankov (1989) ; bazirite, BaZrSi 3 O 9 , and benitoite, BaTiSi 3 O 9 ; dalyite, K 2 ZrSi 6 O 15 , and davanite, K 2...
FIGURES
Journal Article
Published: 01 June 2016
Mineralogical Magazine (2016) 80 (4): 547-565.
FIGURES | View All (4)
Journal Article
Published: 01 January 2005
Reviews in Mineralogy and Geochemistry (2005) 57 (1): 17-68.
FIGURES | View All (46)
Journal Article
Published: 01 January 2005
Reviews in Mineralogy and Geochemistry (2005) 57 (1): 105-143.
...- and eight-membered rings of SiO 4 tetrahedra; (Zr,Ti)O 6 octahedra; additional linking of the layers via CaO 6 octahedra (in armstrongite) or via CeO 6 octahedra and NaO 5 polyhedra (in sazhinite-(Ce)). Fleet 1965 Davanite**
 K 2 TiSi 6 O 15 P 1̅ 7.14 7.53 6.93 103.0, 114.5, 93.9 21.2...
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Journal Article
Published: 01 February 2019
Mineralogical Magazine (2019) 83 (1): 3-55.
...Fig. 21. Folded 4.6.8 sheets in the structures of ( a ) armstrongite , ( b ) dalyite and davanite , and ( c ) sazhinite-(Ce) and sazhinite-(La) . ...
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Journal Article
Published: 01 January 2005
Reviews in Mineralogy and Geochemistry (2005) 57 (1): 145-171.
...*, khibinskite, catapleiite*, calcium catapleiite, wadeite, gaidonnayite, georgechaoite, elpidite, terskite, vlasovite, narsarsukite, shcherbakovite, batisite, zorite, Na- komarovite, komarovite, penkvilksite, sazhinite-(Ce), vinogradovite, paravinogradovite, dalyite, davanite, seidite-(Ce), ilímaussite-(Ce...
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