Vanalite Mineral Data

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)

Environment:

Encrusting joints and cavities in weathered shales.

IMA Status:

Approved IMA 1962

Locality:

Prospect in the Kurumsak River valley, northwestern Kara-Tau Mountains, south Kazakhstan. Link to MinDat.org Location Data.

Name Origin:

Named for the VANadium and ALuminum in the composition.

Name Pronunciation:

Vanalite

Vanalite Image

Images:

Vanalite

Comments: Fragment of bright yellow powdery vanalite.
Location: Kurumsak V Deposit, Kurumsak River Valley, Karatau Range, OngtÃ¼stik Qazaqstan Oblysy (Southern-Kazakhstan Oblast'), Kazakhstan. Scale: Sample Size 0.025 cm.
© Jeff Weissman / Photographic Guide to Mineral Species

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 - Prismatic H-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
Ncalc = 1.66 - 1.74

Optical Data:

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

Calculated Properties of Vanalite

Electron Density:

Bulk Density (Electron Density)=2.35 gm/cc
note: Specific Gravity of Vanalite =2.35 gm/cc.

Fermion Index:

Fermion Index = 0.0009515666
Boson Index = 0.9990484334

Photoelectric:

PE_Vanalite= 5.39 barns/electron
U=PE_Vanalite x rElectron Density= 12.67 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Vanalite is Not Radioactive

Vanalite Classification

Dana Class:

47.04.02.01 (47)Vanadium Oxysalts

(47.04)(Hydrated Containing V++++ and V+++++)

(47.04.02)Dana Group

47.04.02.01 Vanalite NaAl8V10O38•30(H2O) P 2/m 2/m

Strunz Class:

04.HG.15 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate

04.H - V[5,6] Vanadates

04.HG -Unclassified V oxides

04.HG.15 Vanalite NaAl8V10O38•30(H2O) P 2/m 2/m

Other Vanalite Information

References:

NAME( AntBidBlaNic4) 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 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

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

Vanalite

NaAl8V10O38•30(H2O)
Dana No: 47.04.02.01 Strunz No: 04.HG.15
Locality:

Notes:

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