Vanalite Mineral Data

Vanalite Mineral Data +

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General Vanalite Information

Chemical Formula:

NaAl8V10O38·30(H2O)

Composition:

Molecular Weight = 1,896.69 gm

Sodium 1.21 % Na 1.63 % Na₂O

Aluminum 11.38 % Al 21.50 % Al₂O₃

Vanadium 26.86 % V 47.95 % V₂O₅

Hydrogen 3.19 % H 28.49 % H₂O

Oxygen 57.36 % O

______ ______

100.00 % 99.58 % = TOTAL OXIDE

Empirical Formula:

NaAl₈V⁵⁺₁₀O₃₈·30(H₂O)

IMA Status:

Approved IMA 1962

Locality:

Link to MinDat.org Location Data.

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Vanalite Crystallography

Axial Ratios:

a:b:c =1.1822:1:1.0242

Cell Dimensions:

a = 12.618, b = 10.673, c = 10.932, Z = 1; beta = 95.22° V = 1,466.13 Den(Calc)= 2.15

Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 2/m

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

By Intensity(I/I_o): 10.7(1), 8.52(0.4), 7.9(0.35),

Physical Properties of Vanalite

Cleavage:

[010] Perfect, [100] Perfect

Color:

Light yellow, Orange.

Density:

2.3 - 2.4, Average = 2.34

Luster:

Vitreous - Waxy

Streak:

yellow

Optical Properties of Vanalite

Gladstone-Dale:

CI meas= 0 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.093 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.336,KPDmeas= 0.3074,KC= 0.3075

Optical Data:

Biaxial (?), a=1.71, g=1.735, bire=0.0250

Calculated Properties of Vanalite

Electron Density:

r_electron=2.35 gm/cc
note: r_Vanalite=2.35 gm/cc.

Fermion Index

Fermion Index = 0.00095
Boson Index = 0.99905

Photoelectric:

PE_Vanalite= 5.39 barns/electron
U=PE_Vanalite x r_electron= 12.67 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Vanalite is Not Radioactive

Vanalite Classification

Dana Class:

47.4.2.1 (47)Vanadium Oxysalts

(47.4)(Hydrated Containing V++++ and V+++++)

(47.4.2)Dana Group

47.4.2.1 Vanalite NaAl8V10O38·30(H2O) P 2/m 2/m

Strunz Class:

IV/G.04-10 IV - Oxides

IV/G - Vanadiumoxides (with V4+/5+), Appendix to vanadates: Unclassified vanadates

IV/G.04 - Unclassified vanadates, Vanalite

IV/G.04-10 Vanalite NaAl8V10O38·30(H2O) P 2/m 2/m

Other Vanalite Information

References:

PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Vanalite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 -École des Mines de Paris

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Print or Cut-and-Paste your Vanalite Specimen Label here :

Vanalite

NaAl8V10O38·30(H2O)
Dana No: 47.4.2.1 Strunz No: IV/G.04-10
Locality:

Notes: