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Vanuralite

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About VanuraliteHide

Formula:
Al(UO2)2(V2O8)(OH) · 11H2O
The formula of vanuralite and related minerals is commonly mistakenly written as to be containing VO4 groups. Since the structure does not contain any of them, but V2O8 dimers (pairs of edge-sharing VO5 tetragonal pyramids), the formula has to be written as Al[(UO2)2V2O8(OH)].11H2O. The real H2O content can be significantly lower (8.5H2O according to structure determination of Plášil, 2017).
Colour:
Lemon-yellow
Hardness:
2
Crystal System:
Monoclinic
Member of:
Name:
The name reflects its composition: VANadium, URanium and ALuminium.
This page provides mineralogical data about Vanuralite.


Classification of VanuraliteHide

Approved
4.HB.20

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
H : V[5,6] Vanadates
B : Uranyl Sorovanodates
Dana 7th ed.:
42.11.15.1
42.11.13.1

42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
11 : (AB)3(XO4)2Zq·xH2O
21.4.12

21 : Vanadates (and vanadates with arsenate or phosphate)
4 : Vanadates of U, Mn, Fe or Ni

Physical Properties of VanuraliteHide

Transparency:
Translucent
Colour:
Lemon-yellow
Hardness:

Optical Data of VanuraliteHide

Type:
Biaxial (-)
RI values:
nα = 1.650 nβ = 1.850 nγ = 1.900
2V:
Measured: 44° , Calculated: 48°
Max Birefringence:
δ = 0.250
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High
Dispersion:
relatively strong

Chemical Properties of VanuraliteHide

Formula:
Al(UO2)2(V2O8)(OH) · 11H2O

The formula of vanuralite and related minerals is commonly mistakenly written as to be containing VO4 groups. Since the structure does not contain any of them, but V2O8 dimers (pairs of edge-sharing VO5 tetragonal pyramids), the formula has to be written as Al[(UO2)2V2O8(OH)].11H2O. The real H2O content can be significantly lower (8.5H2O according to structure determination of Plášil, 2017).
IMA Formula:
Al(UO2)2(VO4)2(OH) · 11H2O

Crystallography of VanuraliteHide

Crystal System:
Monoclinic
Cell Parameters:
a = 10.55 Å, b = 8.44 Å, c = 24.52 Å
β = 103°
Ratio:
a:b:c = 1.25 : 1 : 2.905
Unit Cell V:
2,127.35 ų (Calculated from Unit Cell)

X-Ray Powder DiffractionHide

Image Loading

Radiation - Copper Kα
Data Set:
Data courtesy of RRUFF project at University of Arizona, used with permission.

Type Occurrence of VanuraliteHide

Other Language Names for VanuraliteHide

Relationship of Vanuralite to other SpeciesHide

Member of:
Other Members of this group:
CarnotiteK2(UO2)2(VO4)2 · 3H2OMon. 2/m : P21/b
Margaritasite(Cs,K,H3O)2(UO2)2(VO4)2 · H2OMon. 2/m : P21/b
MetatyuyamuniteCa(UO2)2(VO4)2 · 3-5H2OOrth. mmm (2/m 2/m 2/m)
MetavanuraliteAl(UO2)2(VO4)2(OH) · 8H2OTric.
SengieriteCu2(UO2)2(VO4)2 · 6H2OMon. 2/m : P21/b
StrelkiniteNa2(UO2)2(VO4)2 · 6H2OOrth.
TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2OOrth. mmm (2/m 2/m 2/m) : Pnna

Common AssociatesHide

Associated Minerals Based on Photo Data:
Chervetite1 photo of Vanuralite associated with Chervetite on mindat.org.
Mounanaite1 photo of Vanuralite associated with Mounanaite on mindat.org.
Curienite-Francevillite Series1 photo of Vanuralite associated with Curienite-Francevillite Series on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

4.HB.05CarnotiteK2(UO2)2(VO4)2 · 3H2OMon. 2/m : P21/b
4.HB.05Margaritasite(Cs,K,H3O)2(UO2)2(VO4)2 · H2OMon. 2/m : P21/b
4.HB.10SengieriteCu2(UO2)2(VO4)2 · 6H2OMon. 2/m : P21/b
4.HB.15CurienitePb(UO2)2(VO4)2 · 5H2OOrth.
4.HB.15FrancevilliteBa(UO2)2(VO4)2 · 5H2OOrth.
4.HB.15FritzscheiteMn(UO2)2(PO4,VO4)2 · 10H2O (?)Tet.
4.HB.20MetavanuraliteAl(UO2)2(VO4)2(OH) · 8H2OTric.
4.HB.25MetatyuyamuniteCa(UO2)2(VO4)2 · 3-5H2OOrth. mmm (2/m 2/m 2/m)
4.HB.25TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2OOrth. mmm (2/m 2/m 2/m) : Pnna
4.HB.30StrelkiniteNa2(UO2)2(VO4)2 · 6H2OOrth.
4.HB.35UvaniteU6+2V5+6O21 · 15H2O (?)Orth.
4.HB.40RauviteCa(UO2)2(V10O28) · 16H2O

Related Minerals - Dana Grouping (8th Ed.)Hide

42.11.13.2MetavanuraliteAl(UO2)2(VO4)2(OH) · 8H2OTric.
42.11.13.3ThreadgolditeAl(UO2)2(PO4)2(OH) · 8H2OMon.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

21.4.1UvaniteU6+2V5+6O21 · 15H2O (?)Orth.
21.4.2Vanuranylite(H3O)2(UO2)2(VO4)2 · 4H2O
21.4.3StrelkiniteNa2(UO2)2(VO4)2 · 6H2OOrth.
21.4.4CarnotiteK2(UO2)2(VO4)2 · 3H2OMon. 2/m : P21/b
21.4.5Margaritasite(Cs,K,H3O)2(UO2)2(VO4)2 · H2OMon. 2/m : P21/b
21.4.6SengieriteCu2(UO2)2(VO4)2 · 6H2OMon. 2/m : P21/b
21.4.7MetatyuyamuniteCa(UO2)2(VO4)2 · 3-5H2OOrth. mmm (2/m 2/m 2/m)
21.4.8TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2OOrth. mmm (2/m 2/m 2/m) : Pnna
21.4.9RauviteCa(UO2)2(V10O28) · 16H2O
21.4.10FrancevilliteBa(UO2)2(VO4)2 · 5H2OOrth.
21.4.11MetavanuraliteAl(UO2)2(VO4)2(OH) · 8H2OTric.
21.4.13CurienitePb(UO2)2(VO4)2 · 5H2OOrth.
21.4.14FritzscheiteMn(UO2)2(PO4,VO4)2 · 10H2O (?)Tet.
21.4.15Palenzonaite(Ca,Na)3CaMn2+2(VO4)3Iso. m3m (4/m 3 2/m) : Ia3d
21.4.16Santafeite(Na,Ca,Sr)12(Mn2+,Fe3+,Al,Mg)8Mn4+8(VO4)16(OH,O)20 · 8H2OOrth. mmm (2/m 2/m 2/m)
21.4.17PyrobelonitePbMn2+(VO4)(OH)Orth. mmm (2/m 2/m 2/m) : Pnma
21.4.18BrackebuschitePb2Mn3+(VO4)2(OH)Mon. 2/m : P21/m
21.4.19ČechitePbFe2+(VO4)(OH)Orth. mmm (2/m 2/m 2/m)
21.4.20HeyitePb5Fe2+2(VO4)2O4Mon.
21.4.21MounanaitePbFe3+2(VO4)2(OH,F)2Mon. 2/m : B2/m
21.4.22SchubneliteFe3+VO4 · H2OTric.
21.4.23FervaniteFe3+4V5+4O16 · 5H2OMon.
21.4.24KazakhstaniteFe3+5V4+3V5+12O39(OH)9 · 9H2OMon.
21.4.25Bokite(Al,Fe3+)1.3(V5+,V4+,Fe3+)8O20 · 7.4H2OMon.
21.4.26Rusakovite(Fe3+,Al)5(VO4,PO4)2(OH)9 · 3H2O
21.4.27KolovratiteNixZny(VO4)0.67(x+y) · nH2O

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for VanuraliteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Branche, G., Bariand, P., Chantret, F., Pouget, R. & Rimsky, A. (1963) La vanuralite, nouveau mineral uranifère. Compte Rendu Acad. Sci. Paris (1963), 256, 5374-5376.(in French) Abstract: American Mineralogist (1963): 48: 1415.
Cesbron, F. (1970) Nouvelle données sur la vanuralite. Existence de la méta-vanuralite. Bulletin de la Société française de Minéralogie et de Cristallographie (1970): 93: 242-248.
American Mineralogist (1971): 56: 639.
Plášil, J. (2017): Crystal structure of vanuralite, Al[(UO2)2(VO4)2](OH) · 8.5H2O. Zeitschrift für Kristallographie 232: 807-814.

Internet Links for VanuraliteHide

Localities for VanuraliteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Gabon (TL)
 
  • Haut-Ogooué Province
    • Franceville
[C.R.Acad.Sci.Paris (1963) 256, 5374-5376; MinRec 6:239, 6:242, 6:246]
Spain
 
  • Extremadura
    • Badajoz
      • Mérida
        • Carija hill
Calvo, M. (2009): Minerales y Minas de España. Vol. IV, Óxidos e Hidróxidos. Escuela Técnica Superior de Ingenieros de Minas de Madrid - Fundación Gómez Pardo. 752 pp
Mineral and/or Locality  
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