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Moluranite

Big Photo

Picacho, Bacoachi, Mun. de Bacoachi, Sonora, Mexico
© Brent Thorne 2008

Formula:
H
 
4
U
4+
 
(UO
 
2
)
 
3
(MoO
 
4
)
 
7
·18H
 
2
O
Hardness:3 - 4
This page provides mineralogical data about Moluranite.

Classification of Moluranite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:6/G.05-30
Nickel-Strunz 10th (pending) edition ID:7.HA.15

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
H : Uranium and uranyl molybdates and wolframates
A : With U4+
Dana 8th edition ID:49.1.2.1

49 : HYDRATED MOLYBDATES AND TUNGSTATES
1 : Acid Hydrated Molybdates and Tungstates
Hey's CIM Ref.:27.3.9

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

Type Locality:Aleksandrovskii Golets Mo-U occurrence, Chara River (Charo River), Davan, Torgo River Basin, Aldan Shield, Saha Republic (Sakha Republic; Yakutia), Eastern-Siberian Region, Russia
Year of Discovery:1959

Physical Properties of Moluranite

Hardness (Mohs):3 - 4

Chemical Properties of Moluranite

Formula:
H
 
4
U
4+
 
(UO
 
2
)
 
3
(MoO
 
4
)
 
7
·18H
 
2
O
Essential elements:H, Mo, O, U
All elements listed in formula:H, Mo, O, U

Relationship of Moluranite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
7.HA.05Sedovite
U(MoO
 
4
)
 
2
7.HA.10Cousinite
MgU
 
2
Mo
 
2
O
 
11
·6H
 
2
O
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
27.3.6Mourite
UMo
 
5
O
 
12
(OH)
 
10
27.3.7Iriginite
UO
 
2
Mo
 
2
O
 
7
·3H
 
2
O
27.3.8Umohoite
(UO
 
2
)MoO
 
4
·4H
 
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 Moluranite

Other Languages:
German:Moluranit
Spanish:Moluranita

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 Moluranite

Reference List:American Mineralogist (1960): 45: 258.

Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva: 88: 564-570 (1959)

Internet Links for Moluranite

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  • Raman and XRD data at RRUFF project
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    Localities for Moluranite

    (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.
    Mexico
     
    • Sonora
      • Mun. de Bacoachi
        • Bacoachi
    		Analysis by and from the collection of Sid Williams
    Russia
     
    • Eastern-Siberian Region
      • Saha Republic (Sakha Republic; Yakutia)
        • Aldan Shield
          • Torgo River Basin
            • Davan
              • Chara River (Charo River)
    		Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
    Mineral and/or Locality
    Google
     
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