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Moluranite

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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, Torgo River Basin, Chara and Tokko Rivers Confluence, 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
(MoO
 
4
)
 
2
(OH)
 
2
27.3.2Powellite
Ca(MoO
 
4
)
27.3.3Wulfenite
Pb(MoO
 
4
)
27.3.4Koechlinite
Bi
 
2
MoO
 
6
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
 · 2H
 
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
  • American Mineralogist Crystal Structure Database
  • Moluranite details from Handbook of Mineralogy (PDF)
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    • Localities for Moluranite

    Hide Locality List
    (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.
    China
     
    • Guizhou Province
      • Qianxi'nan Autonomous Prefecture
        • Xingyi Co.
    		Mingfa Zhang, Xiqi He, Wen Xiao, and Meixue Zhang (2005): Guizhou Geology 22(3), 184-187
    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
          • Chara and Tokko Rivers Confluence
            • Torgo River Basin
    		Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
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    Copyright © Jolyon Ralph and Ida Chau 1993-2012. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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