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Uvanite

Formula:
U
 
2
V
 
6
O
 
21
·15H
 
2
O
System:OrthorhombicColour:Brown-yellow; pale brown ...
Name:In allusion to its composition, containing Uranium and VANadium.


A secondary mineral occurring in asphaltic sandstone in a Colorado Plateau-type uranium deposit.

Classification of Uvanite

IMA status:Questionable/Doubtful
Strunz 8th edition ID:4/G.05-20
Nickel-Strunz 10th (pending) edition ID:4.HB.35

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
H : V[5,6] Vanadates
B : Uranyl Sorovanodates
Dana 8th edition ID:47.4.5.1

47 : VANADIUM OXYSALTS
4 : Vanadium Bronzes
Hey's CIM Ref.:21.4.1

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

Type Locality:Temple Mountain, San Rafael District (San Rafael Swell), Emery Co., Utah, USA
General Appearance of Type Material:Crystalline coatings and massive
Place of Conservation of Type Material:Harvard University, Cambridge, Massachusetts, USA: #62753. U.S. National Museum of Natural History, Washington, D.C., USA: #87512, R5708.
Year of Discovery:1914
Geological Setting of type material:Shinarump asphaltic sandstone.
Associated Minerals at type locality:
RauviteOpal-ANMetatorberniteHewettiteGypsum
Carnotite

Physical Properties of Uvanite

Diaphaneity (Transparency):Translucent
Colour:Brown-yellow; pale brown in transmitted light
Cleavage:Distinct/Good
Two directions, pinacoidal.

Crystallography of Uvanite

Crystal System:Orthorhombic
Morphology:Minutely crystalline coaings and massive.
Comment:Crystal System probable.

Optical Data of Uvanite

Type:Biaxial (+)
RI values: nα = 1.817 nβ = 1.879 nγ = 2.057
2V:Measured: 52°
Maximum Birefringence:δ = 0.240

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Very High
Dispersion:r > v
Pleochroism:Visible
Comments:X = Light brown Y = Dark Brown Z = Greenish yellow

Chemical Properties of Uvanite

Formula:
U
 
2
V
 
6
O
 
21
·15H
 
2
O
Essential elements:H, O, U, V
All elements listed in formula:H, O, U, V

Relationship of Uvanite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
4.HB.05Carnotite
K
 
2
(UO
 
2
)
 
2
[VO
 
4
]
 
2
 · 3H
 
2
O
4.HB.05Margaritasite
(Cs,K,H
 
3
O)
 
2
(UO
 
2
)
 
2
[VO
 
4
]
 
2
 · H
 
2
O
4.HB.10Sengierite
Cu
 
2
(UO
 
2
)
 
2
[VO
 
4
]
 
2
 · 6H
 
2
O
4.HB.15Curienite
Pb(UO
 
2
)
 
2
[VO
 
4
]
 
2
 · 5H
 
2
O
4.HB.15Francevillite
(Ba,Pb)(UO
 
2
)
 
2
[VO
 
4
]
 
2
 · 5H
 
2
O
4.HB.15Fritzscheite
Mn(UO
 
2
)
 
2
(PO
 
4
,VO
 
4
)
 
2
·10H
 
2
O (?)
4.HB.20Metavanuralite
Al(UO
 
2
)
 
2
[OH|(VO
 
4
)
 
2
] · 8H
 
2
O
4.HB.20Vanuralite
Al(UO
 
2
)
 
2
[OH|(VO
 
4
)
 
2
] · 11H
 
2
O
4.HB.25Metatyuyamunite
Ca(UO
 
2
)
 
2
[VO
 
4
]
 
2
 · 3-5H
 
2
O
4.HB.25Tyuyamunite
Ca(UO
 
2
)
 
2
[VO
 
4
]
 
2
 · 5-8H
 
2
O
4.HB.30Strelkinite
Na
 
2
(UO
 
2
)
 
2
[VO
 
4
]
 
2
 · 6H
 
2
O
4.HB.40Rauvite
Ca(UO
 
2
)
 
2
V
 
10
O
 
28
·16H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
21.4.2Vanuranylite
(H
 
3
O)
 
2
(UO
 
2
)
 
2
[VO
 
4
]
 
2
 · 4H
 
2
O
21.4.3Strelkinite
Na
 
2
(UO
 
2
)
 
2
[VO
 
4
]
 
2
 · 6H
 
2
O
21.4.4Carnotite
K
 
2
(UO
 
2
)
 
2
[VO
 
4
]
 
2
 · 3H
 
2
O
21.4.5Margaritasite
(Cs,K,H
 
3
O)
 
2
(UO
 
2
)
 
2
[VO
 
4
]
 
2
 · H
 
2
O
21.4.6Sengierite
Cu
 
2
(UO
 
2
)
 
2
[VO
 
4
]
 
2
 · 6H
 
2
O
21.4.7Metatyuyamunite
Ca(UO
 
2
)
 
2
[VO
 
4
]
 
2
 · 3-5H
 
2
O
21.4.8Tyuyamunite
Ca(UO
 
2
)
 
2
[VO
 
4
]
 
2
 · 5-8H
 
2
O
21.4.9Rauvite
Ca(UO
 
2
)
 
2
V
 
10
O
 
28
·16H
 
2
O
21.4.10Francevillite
(Ba,Pb)(UO
 
2
)
 
2
[VO
 
4
]
 
2
 · 5H
 
2
O
21.4.11Metavanuralite
Al(UO
 
2
)
 
2
[OH|(VO
 
4
)
 
2
] · 8H
 
2
O
21.4.12Vanuralite
Al(UO
 
2
)
 
2
[OH|(VO
 
4
)
 
2
] · 11H
 
2
O
21.4.13Curienite
Pb(UO
 
2
)
 
2
[VO
 
4
]
 
2
 · 5H
 
2
O
21.4.14Fritzscheite
Mn(UO
 
2
)
 
2
(PO
 
4
,VO
 
4
)
 
2
·10H
 
2
O (?)
21.4.15Palenzonaite
(Ca,Na)
 
3
CaMn
2+
2
[VO
 
4
]
 
3
21.4.16Santafeite
(Ca,Sr,Na)
 
12
(Mn
2+
 
,Fe
3+
 
,Al,Mg)
 
8
Mn
4+
8
(VO
 
4
)
 
16
(OH,O)
 
20
 · 8H
 
2
O
21.4.17Pyrobelonite
PbMn
2+
 
[OH|VO
 
4
]
21.4.18Brackebuschite
Pb
 
2
(Mn
3+
 
,Fe
3+
 
)[OH|(VO
 
4
)
 
2
]
21.4.19Čechite
Pb(Fe
2+
 
,Mn
2+
 
)[OH|VO
 
4
]
21.4.20Heyite
Pb
 
5
Fe
2+
2
[O
 
2
|VO
 
4
]
 
2
21.4.21Mounanaite
PbFe
3+
2
[VO
 
4
]
 
2
 · 2(OH,F)
21.4.22Schubnelite
Fe
 
2-x
V
 
2
O
 
4
(OH)
 
4
21.4.23Fervanite
Fe
 
4
(VO
 
4
)
 
4
·5H
 
2
O
21.4.24Kazakhstanite
Fe
 
5
V
 
3
V
 
12
O
 
39
(OH)
 
9
·9H
 
2
O
21.4.25Bokite
(Al,Fe
3+
 
)
 
1.3
[(V
5+
 
,V
4+
 
,Fe
3+
 
)
 
4
O
 
10
]
 
2
 · 7.5H
 
2
O
21.4.26Rusakovite
(Fe
3+
 
,Al)
 
5
[(OH)
 
9
|(VO
 
4
,PO
 
4
)
 
2
] · 3H
 
2
O
21.4.27Kolovratite
(Zn,Ni,Cu)
 
2-5
Al
 
4-6
(Si,V
4+
 
,V
5+
 
)
 
4
(O,OH)
 
20
·7.5H
 
2
O

Other Names for Uvanite

Other Languages:
German:Uvanit
Spanish:Uvanita

Other Information

Other Information:Insoluble in water. Soluble in ammonium carbonate solution.
Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Uvanite

Reference List:Hess, F.L. & Schaller, W.T. (1914): Pintadoite and Uvanite, two new vanadium minerals from Utah : A preliminary note. Journal of the Washington Academy of Science, 4, 576-579.

Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged, 1124 pp.: 1056.

Frondel, C. (1958) Systematic mineralogy of uranium and thorium. US Geological Survey Bulletin, 1064, 261-263.

Weiss, A. and K.J. Hilke (1965) Uvanit, ein Uranylvanadat mit Schichstruktur und innerkristallinem Quellungsvermögen. Anorg. Chem., 7(7), 347 (in German).

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    Localities for Uvanite

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