Kukisvumite Mineral Data

Kukisvumite Mineral Data +

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General Kukisvumite Information

Chemical Formula:

Na6ZnTi4Si8O28·4(H2O)

Composition:

Molecular Weight = 1,139.58 gm

Sodium 12.10 % Na 16.32 % Na₂O

Titanium 16.81 % Ti 28.04 % TiO₂

Zinc 5.74 % Zn 7.14 % ZnO

Silicon 19.72 % Si 42.18 % SiO₂

Hydrogen 0.71 % H 6.32 % H₂O

Oxygen 44.93 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Na₆ZnTi₄Si₈O₂₈·4(H₂O)

IMA Status:

Approved IMA 1991

Locality:

Link to MinDat.org Location Data.

Synonym:

IMA1989-052

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Kukisvumite Crystallography

Axial Ratios:

a:b:c =3.3576:1:0.6061

Cell Dimensions:

a = 28.889, b = 8.604, c = 5.215, Z = 2; V = 1,296.25 Den(Calc)= 2.92

Crystal System:

Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: Pccn

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 3.009(1), 14.49(0.9), 4.815(0.8),

Physical Properties of Kukisvumite

Cleavage:

None

Color:

Colorless, White.

Density:

2.9

Diaphaniety:

Transparent

Hardness:

5.5-6 - Knife Blade-Orthoclase

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Kukisvumite

Gladstone-Dale:

CI meas= 0.026 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.033 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2531,KPDmeas= 0.2548,KC= 0.2617

Optical Data:

Biaxial (-), a=1.676, b=1.746, g=1.795, bire=0.1190, 2V(Calc)=76, 2V(Meas)=77.

Calculated Properties of Kukisvumite

Electron Density:

r_electron=2.85 gm/cc
note: r_Kukisvumite=2.90 gm/cc.

Fermion Index

Fermion Index = 0.0335
Boson Index = 0.9665

Photoelectric:

PE_Kukisvumite= 6.49 barns/electron
U=PE_Kukisvumite x r_electron= 18.51 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Kukisvumite is Not Radioactive

Kukisvumite Classification

Dana Class:

65.1.6.2 (65)Inosilicate Single-Width Unbranched Chains, W=1

(65.1)with chains P=2

(65.1.6)Lorenzenite group

65.1.6.1 Lorenzenite Na2Ti2Si2O9 P bcn 2/m 2/m 2/m

65.1.6.2 Kukisvumite Na6ZnTi4Si8O28·4(H2O) Pccn 2/m 2/m 2/m

65.1.6.3 Lintisite Na3LiTi2Si4O14·2(H2O) C 2/c 2/m

65.1.6.4 Manganokukisvumite! Na6MnTi4Si8O28·4(H2O) Pccn 2/m 2/m 2/m

Strunz Class:

VIII/C.13-25 VIII - Silicates

VIII/C - Sorosilicates with [Si2O7]6-, with anions unfamiliar to tetraheders [O,OH,F]

VIII/C.13 - Rosenbuschite - Lamprophyllite - Hejtmanite series

VIII/C.13-05 Grenmarite! (Zr,Mn)2(Zr,Ti)(Mn,Na)(Na,Ca)4(Si2O7)2(O,F)4 P 2/c 2/m

VIII/C.13-10 Seidozerite (Na,Ca)2(Zr,Ti,Mn)2Si2O7(O,F)2 P 2/c 2/m

VIII/C.13-15 Nabalamprophyllite! Ba(Na,Ba){Na3Ti[Ti2O2Si4O14](OH,F)2} P 2/m 2/m

VIII/C.13-20 Lamprophyllite Na2(Sr,Ba)2Ti3(SiO4)4(OH,F)2 C 2/m 2/m

VIII/C.13-25 Kukisvumite Na6ZnTi4Si8O28·4(H2O) Pccn 2/m 2/m 2/m

VIII/C.13-27 Shkatulkalite! Na10MnTi3Nb3(Si2O7)6(OH)2F·12(H2O) P 2,Pm,P 2/m Mono

VIII/C.13-30 Barytolamprophyllite Ba2Na3(Fe,Ti)3(Si2O7)2(O,OH,F)4 C 2/m 2/m

VIII/C.13-40 Ericssonite BaMn2FeO[Si2O7](OH) C 2/m 2/m

VIII/C.13-50 Orthoericssonite BaMn2(FeO)Si2O7(OH) Pmmn 2/m 2/m 2/m

Other Kukisvumite Information

References:

PHYS. PROP.(37th List of New Min.,Min. Mag.,1996) OPTIC PROP.(37th List of New Min.,Min. Mag.,19)

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Kukisvumite

Na6ZnTi4Si8O28·4(H2O)
Dana No: 65.1.6.2 Strunz No: VIII/C.13-25
Locality:

Notes: