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Mourite

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Kyzylsai Mo-U deposit, Chu-Ili Mts, Balqash (Balkhash; Karatas) Region, Zhezqazghan Oblysy (Dzezkazgan Oblast'; Dzhezkazgan Oblast'; Djezkazgan Oblast'; Jezkazgan Oblast'), Kazakhstan
© P.M. Kartashov

Show Mourite Photos (4)
Formula:
UMo
 
5
O
 
12
(OH)
 
10
System:MonoclinicHardness:3
This page provides mineralogical data about Mourite.

Classification of Mourite

IMA status:Approved
Strunz 8th edition ID:6/G.05-10
Nickel-Strunz 10th (pending) edition ID:4.FL.80

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
F : Hydroxides (without V or U)
L : Hydroxides with H2O +- (OH); sheets of edge-sharing octahedra
Dana 8th edition ID:5.9.4.1

5 : OXIDES CONTAINING URANIUM OR THORIUM
9 : Miscellaneous
Hey's CIM Ref.:27.3.6

27 : Sulphites, Chromates, Molybdates and Tungstates
3 : Molybdates
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Type Occurrence of Mourite

Type Locality:Kyzylsai Mo-U deposit, Chu-Ili Mts, Balqash (Balkhash; Karatas) Region, Zhezqazghan Oblysy (Dzezkazgan Oblast'; Dzhezkazgan Oblast'; Djezkazgan Oblast'; Jezkazgan Oblast'), Kazakhstan
Year of Discovery:1962

Physical Properties of Mourite

Hardness (Mohs):3

Crystallography of Mourite

Crystal System:Monoclinic
Cell Parameters:a = 24.42Å, b = 7.18Å, c = 9.89Å
β = 102.17°
Ratio:a:b:c = 3.401 : 1 : 1.377
Unit Cell Volume:V 1,695.10 ų (Calculated from Unit Cell)

Optical Data of Mourite

Type:Biaxial
RI values: nα = 1.790
Maximum Birefringence:δ = 1.790

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate
Dispersion:r > v perceptible

Chemical Properties of Mourite

Formula:
UMo
 
5
O
 
12
(OH)
 
10
Essential elements:H, Mo, O, U
All elements listed in formula:H, Mo, O, U

Relationship of Mourite to other Species

Related Minerals - Nickel-Strunz Grouping):
4.FL.05Woodallite
Mg
 
6
Cr
 
2
(OH)
 
16
Cl
 
2
·4H
 
2
O
4.FL.05Iowaite
Mg
 
4
Fe(OH)
 
8
OCl·4H
 
2
O
4.FL.05Jamborite
(Ni
2+
 
,Ni
3+
 
,Co,Fe)(OH)
 
2
(OH,S,H
 
2
O)
4.FL.05Meixnerite
Mg
 
6
Al
 
2
(OH)
 
18
·4H
 
2
O
4.FL.05Muskoxite
Mg
 
7
Fe
 
4
O
 
13
·10H
 
2
O
4.FL.05Fougèrite
(Fe
2+
 
,Mg)
 
6
Fe
3+
2
(OH)
 
18
 · 4H
 
2
O
4.FL.10Hydrocalumite
Ca
 
2
Al(OH)
 
7
·2H
 
2
O
4.FL.15Kuzelite
Ca
 
4
Al
 
2.4
(OH)
 
12.8
(SO
 
4
)·6H
 
2
O
4.FL.20Aurorite
(Mn
2+
 
,Ag,Ca)Mn
4+
3
O
 
7
 · 3H
 
2
O
4.FL.20Chalcophanite
(Zn,Fe,Mn)Mn
 
3
O
 
7
·3H
 
2
O
4.FL.20Ernienickelite
NiMn
 
3
O
 
7
·3H
 
2
O
4.FL.20Jianshuiite
(Mg,Mn)Mn
 
3
O
 
7
·3H
 
2
O
4.FL.25Woodruffite
Zn(Mn
4+
 
,Mn
3+
 
)
 
5
O
 
10
·3½H
 
2
O
4.FL.30Asbolane
(Ni,Co)
 
2-x
Mn
4+
 
(O,OH)
 
4
 · nH
 
2
O
4.FL.35Buserite
Na
 
4
Mn
 
14
O
 
27
 ·21H
 
2
O
4.FL.40Ranciéite
(Ca,Mn)Mn
 
4
O
 
9
·3H
 
2
O
4.FL.40Takanelite
(Mn,Ca)Mn
 
4
O
 
9
·H
 
2
O
4.FL.45Birnessite
(Na,Ca)
 
0.5
(Mn
4+
 
,Mn
3+
 
)
 
2
O
 
4
 · 1.5H
 
2
O
4.FL.55Cianciulliite
Mn(Mg,Mn)
 
2
Zn
 
2
(OH)
 
10
·2-4H
 
2
O
4.FL.60Jensenite
Cu
 
3
[TeO
 
6
] · 2H
 
2
O
4.FL.65Leisingite
Cu(Mg,Cu,Fe,Zn)
 
2
[TeO
 
6
] · 6H
 
2
O
4.FL.70Akdalaite
4Al
 
2
O
 
3
 · H
 
2
O
4.FL.75Cafetite
(Ca,Mg)(Fe,Al)
 
2
Ti
 
4
O
 
12
·4H
 
2
O
4.FL.85Deloryite
Cu
 
4
(UO
 
2
)(MoO
 
4
)
 
2
(OH)
 
6
Related Minerals - Hey's Index Grouping:
27.3.1Lindgrenite
Cu
 
3
[OH|MoO
 
4
]
 
2
27.3.2Powellite
Ca[MoO
 
4
]
27.3.3Wulfenite
Pb[MoO
 
4
]
27.3.4Koechlinite
(BiO)
 
2
[MoO
 
4
]
27.3.5Sedovite
U(MoO
 
4
)
 
2
27.3.7Iriginite
UO
 
2
Mo
 
2
O
 
7
·3H
 
2
O
27.3.8Umohoite
(UO
 
2
)MoO
 
4
·4H
 
2
O
27.3.9Moluranite
U(UO
 
2
)
 
2
Mo
 
5
O
 
19
·12H
 
2
O ?
27.3.10Cousinite
MgU
 
2
Mo
 
2
O
 
11
·6H
 
2
O
27.3.11Calcurmolite
(Ca,Na)
 
2
(UO
 
2
)
 
3
Mo
 
2
(O,OH)
 
11
·nH
 
2
O
27.3.12Tengchongite
CaO·6UO
 
3
·2MoO
 
3
·12H
 
2
O
27.3.13Kamiokite
Fe
 
2
Mo
 
3
O
 
8
27.3.14Ferrimolybdite
Fe
 
2
[MoO
 
4
]
 
3
 · nH
 
2
O

Other Names for Mourite

German names:
Mourit
Spanish names:
Mourita

Other Information

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 Mourite

Reference List:American Mineralogist (1962) 47: 1217.

American Mineralogist (1971): 56: 163-173.

Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva: 91: 67-71.

Geokhimia (Geokhimiya), Moscow (1980): 10: 1557-1562.

Internet Links for Mourite

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    Localities for Mourite

    (TL) indicates type locality. ? 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.
    Kazakhstan
     
    • Zhezqazghan Oblysy (Dzezkazgan Oblast'; Dzhezkazgan Oblast'; Djezkazgan Oblast'; Jezkazgan Oblast')
      • Balqash (Balkhash; Karatas) Region
        • Chu-Ili Mts
    USA
     
    • Texas
      • Karnes Co.
    		Smith, A.E. (1991), Texas Mineral Locations Index, Rocks & Min.: 66(3).
    Mineral and/or Locality
    Google
     
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