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Vanuralite

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Formula:
Al(UO2)2(VO4)2(OH) · 11H2O
System:
Monoclinic
Colour:
Lemon-yellow
Hardness:
2
Name:
The name reflects its composition: VANadium, URanium and ALuminium.
Carnotite Group

Classification of Vanuralite

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
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First Recorded Occurrence of Vanuralite

Year of Discovery:
1963

Physical Properties of Vanuralite

Diaphaneity (Transparency):
Translucent
Colour:
Lemon-yellow
Hardness (Mohs):
2

Crystallography of Vanuralite

Crystal System:
Monoclinic
Cell Parameters:
a = 10.55Å, b = 8.44Å, c = 24.52Å
β = 103°
Ratio:
a:b:c = 1.25 : 1 : 2.905
Unit Cell Volume:
V 2,127.35 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction:
Image Loading

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

Optical Data of Vanuralite

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 Vanuralite

Formula:
Al(UO2)2(VO4)2(OH) · 11H2O
Essential elements:
All elements listed in formula:

Relationship of Vanuralite to other Species

4.HB.05CarnotiteK2(UO2)2(VO4)2 · 3H2O
4.HB.05Margaritasite(Cs,K,H3O)2(UO2)2(VO4)2 · H2O
4.HB.10SengieriteCu2(UO2)2(VO4)2 · 6H2O
4.HB.15CurienitePb(UO2)2(VO4)2 · 5H2O
4.HB.15Francevillite(Ba,Pb)(UO2)2(VO4)2 · 5H2O
4.HB.15FritzscheiteMn(UO2)2(PO4,VO4)2 · 10H2O (?)
4.HB.20MetavanuraliteAl(UO2)2(VO4)2(OH) · 8H2O
4.HB.25MetatyuyamuniteCa(UO2)2(VO4)2 · 3-5H2O
4.HB.25TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2O
4.HB.30StrelkiniteNa2(UO2)2(VO4)2 · 6H2O
4.HB.35UvaniteU26+V65+O21 · 15H2O (?)
4.HB.40RauviteCa(UO2)2(V10O28) · 16H2O
21.4.1UvaniteU26+V65+O21 · 15H2O (?)
21.4.2Vanuranylite(H3O)2(UO2)2(VO4)2 · 4H2O
21.4.3StrelkiniteNa2(UO2)2(VO4)2 · 6H2O
21.4.4CarnotiteK2(UO2)2(VO4)2 · 3H2O
21.4.5Margaritasite(Cs,K,H3O)2(UO2)2(VO4)2 · H2O
21.4.6SengieriteCu2(UO2)2(VO4)2 · 6H2O
21.4.7MetatyuyamuniteCa(UO2)2(VO4)2 · 3-5H2O
21.4.8TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2O
21.4.9RauviteCa(UO2)2(V10O28) · 16H2O
21.4.10Francevillite(Ba,Pb)(UO2)2(VO4)2 · 5H2O
21.4.11MetavanuraliteAl(UO2)2(VO4)2(OH) · 8H2O
21.4.13CurienitePb(UO2)2(VO4)2 · 5H2O
21.4.14FritzscheiteMn(UO2)2(PO4,VO4)2 · 10H2O (?)
21.4.15Palenzonaite(Ca,Na)3CaMn22+(VO4)3
21.4.16Santafeite(Na,Ca,Sr)12(Mn2+,Fe3+,Al,Mg)8Mn84+(VO4)16(OH,O)20 · 8H2O
21.4.17PyrobelonitePbMn2+(VO4)(OH)
21.4.18BrackebuschitePb2Mn3+(VO4)2(OH)
21.4.19ČechitePb(Fe2+,Mn2+)(VO4)(OH)
21.4.20HeyitePb5Fe22+(VO4)2O4
21.4.21MounanaitePbFe23+(VO4)2(OH,F)2
21.4.22SchubneliteFe3+VO4 · H2O
21.4.23FervaniteFe43+V45+O16 · 5H2O
21.4.24KazakhstaniteFe53+V34+V125+O39(OH)9 · 9H2O
21.4.25Bokite(Al,Fe3+)1.3(V5+,V4+,Fe3+)8O20 · 7.4H2O
21.4.26Rusakovite(Fe3+,Al)5(VO4,PO4)2(OH)9 · 3H2O
21.4.27KolovratiteNixZny(VO4)0.67(x+y) · nH2O
42.11.15.2MetavanuraliteAl(UO2)2(VO4)2(OH) · 8H2O
42.11.15.3ThreadgolditeAl(UO2)2(PO4)2(OH) · 8H2O
42.11.15.4ChistyakovaiteAl(UO2)2(AsO4)2(F,OH) · 6.5H2O

Other Names for Vanuralite

Name in Other Languages:
German:Vanuralit
Spanish:Vanuralita

Other Information

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 Vanuralite

Reference List:
C. R. Acad. Sci. Paris (1963), 256, 5374-5376.

American Mineralogist (1963): 48: 1415.

Bulletin de la Société française de Minéralogie et de Cristallographie (1970): 93: 242-248.

American Mineralogist (1971): 56: 639.

Internet Links for Vanuralite

Localities for Vanuralite

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
Gabon
 
  • 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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