Mindat Logo
Home Page Log In Message Board The Mindat Directory
Register Search Pages Chat Now! (2 online) Mindat Auctions

Tyuyamunite

Big Photo

Marie Mine, Pryor Mountains, Carbon Co., Montana, USA
© Saul Krotki 2005

Show Tyuyamunite Photos (76)
Formula:
Ca(UO
 
2
)
 
2
[VO
 
4
]
 
2
 · 5-8H
 
2
O
System:OrthorhombicColour:Canary yellow, ...
Hardness:1½ - 2
Name:Named after its discovery locality, Tyuya-Muyun, Fergana Valley, Kyrgyzstan.


Carnotite Group.

A secondary mineral occurring in the oxidized zones of U-V deposits, especially those of the Colorado Plateau-type.

Classification of Tyuyamunite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:7/E.11-80
Nickel-Strunz 10th (pending) edition ID:4.HB.25

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:40.2a.26.1

40 : HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
2a : AB2(XO4)2·xH2O, containing (UO2)2+
Hey's CIM Ref.:21.4.8

21 : Vanadates (and vanadates with arsenate or phosphate)
4 : Vanadates of U, Mn, Fe or Ni
mindat.org URL:http://www.mindat.org/min-4072.html
Please feel free to link to this page.

Type Occurrence of Tyuyamunite

Type Locality:Tyuya-Muyun Cu-V-U Deposit (Radium Mine), Fergana Valley, Osh Oblast, Kyrgyzstan
General Appearance of Type Material:Veinlet fillings, disseminated in the limestone or as fillings in karst caverns.
Place of Conservation of Type Material:A.E. Fersman Mineralogical Museum, Moscow, Russia: #3575 through 3577.
Year of Discovery:1912
Geological Setting of type material:Carboniferous limestone
Associated Minerals at type locality:
BaryteCalciteTuraniteMalachite

Occurrences of Tyuyamunite

Geological Setting:Oxidized zone Colorado Plateau uranium deposits

Physical Properties of Tyuyamunite

Lustre:Adamantine, Waxy, Pearly, Dull
Diaphaneity (Transparency):Translucent, Opaque
Comment:Pearly on cleavage {001}, waxy or dull when massive.
Colour:Canary yellow, lemon-yellow; greenish yellow (upon exposure to sunlight); colourless to pale yellow in transmitted light.
Hardness (Mohs):1½ - 2
Cleavage:Perfect
Perfect on {001}, micaceous; distinct on {100} & {010}.
Fracture:Micaeous
Density (measured):3.57 - 4.35 g/cm3
Density (calculated):3.59 g/cm3

Crystallography of Tyuyamunite

Crystal System:Orthorhombic
Cell Parameters:a = 10.63Å, b = 28.36Å, c = 20.4Å
Ratio:a:b:c = 0.375 : 1 : 0.719
Unit Cell Volume:V 6,149.92 ų (Calculated from Unit Cell)
Morphology:Crystals elongated, platy, flattened on {001}, elongated [010], with {010}, {110}, and several other forms; may be curved or scaly. Also occurs as fanlike or radial aggregates, as thin films, coatings, pulverulent, and compact to cryptocrystalline massive impregnations.

Optical Data of Tyuyamunite

Type:Biaxial (-)
RI values: nα = 1.675 nβ = 1.860 - 1.870 nγ = 1.885 - 1.895
2V:Measured: 30° to 45°, Calculated: 34°
Maximum Birefringence:δ = 0.210 - 0.220

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Very High
Dispersion:none
Pleochroism:Weak
Comments:X = Nearly colourless
Y = Pale canary yellow
Z = Canary yellow

Chemical Properties of Tyuyamunite

Formula:
Ca(UO
 
2
)
 
2
[VO
 
4
]
 
2
 · 5-8H
 
2
O
Essential elements:Ca, H, O, U, V
All elements listed in formula:Ca, H, O, U, V

Relationship of Tyuyamunite to other Species

Related to:
  • Carnotite Group
    • Common Associates:
    VolborthiteUranophaneMetatyuyamuniteGypsumCorvusite
    Carnotite
    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.30Strelkinite
    Na
     
    2
    		(UO
     
    2
    		)
     
    2
    		[VO
     
    4
    		]
     
    2
    		 · 6H
     
    2
    		O
    4.HB.35Uvanite
    U
     
    2
    		V
     
    6
    		O
     
    21
    		·15H
     
    2
    		O
    4.HB.40Rauvite
    Ca(UO
     
    2
    		)
     
    2
    		V
     
    10
    		O
     
    28
    		·16H
     
    2
    		O
    Related Minerals - Hey's Index Grouping:

    - +
    21.4.1Uvanite
    U
     
    2
    		V
     
    6
    		O
     
    21
    		·15H
     
    2
    		O
    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
    21.4.9Rauvite
    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 Tyuyamunite

    Synonyms:
    CalciocarnotiteCalciomotiteCalcium CarnotiteTĭujamuniteTjuiamunite
    TjujamuniteTujamuniteTuyamuniteTyuyamuyunite
    Other Languages:
    German:Tjujamunit
    Tuyamunit
    Tyuyamunit
    Spanish:Tjujamunita
    Tuyamunita
    Tyuyamunita

    Other Information

    IR Spectrum:Weak yellow-green at times (UV).
    Other Information:Radioactive. The water content is partly zeolitic and varies markedly with humidity at ambient temperatures. Insoluble in dilute acetic acid; soluble in HCl, HNO3 and H2SO4.
    Health Warning:Contains uranium - always wash hands after handling. Avoid inhaling dust when handling or breaking. Never lick or ingest. Avoid prolonged exposure in proximity of the body. Store away from inhabited areas.

    References for Tyuyamunite

    Reference List:Nenadkevič (1912) Bulletin of the Academy of St. Petersburg (1912), [6], 6, 945.

    Hillebrand (1913) American Journal of Science: 35: 440 (as Calciocarnotite).

    Larsen, E.S. (1921) The Microscopic Determination of the Nonopaque Minerals, First edition, USGS Bulletin 679: 148.

    Hess (1924) U.S. Geological Survey Bulletin 750D: 73 (Ross in).

    Hillebrand (1924) American Journal of Science: 8: 201.

    Chirvinsky (1925) Mineralogical Magazine: 20: 287-295.

    Chlopin (1925) Comptes rendus de académie des sciences Russie: 73

    Dolivo-Dobrovolsky (1925) Mineralogicheskoe Obshchestvo, Leningrad, Zapiski: [2]: 54: 359.

    Izvestiya Imperatorskoy Akademii Nauk series 6: 15: 945-946.

    Hintze, Carl (1931) Handbuch der Mineralogie. Berlin and Leipzig. 6 volumes: 1 [4B]: 1005.

    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.: 1045-1047.

    Frondel, C. (1958) Systematic mineralogy of uranium and thorium. U.S. Geological Survey Bull. 1064, 248–253.

    Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva (1965): 94: 441.

    Pekov, I.V. (1998) Minerals first discovered on the territory of the former Soviet Union, 220–221.

    Anthony, J.W., Bideaux, R.A., Bladh, K.W., and Nichols, M.C. (2000) Handbook of Mineralogy, Volume IV. Arsenates, Phosphates, Vanadates. Mineral Data Publishing, Tucson, AZ, 680pp.: 608.

    Internet Links for Tyuyamunite

    Search Engines:
  • Look for Tyuyamunite on Google
  • Look for Tyuyamunite images on Google
    • External Links:
  • Look for Tyuyamunite on Webmineral
  • Look for Tyuyamunite on Athena Mineralogy
  • Look for Tyuyamunite on Wikipedia
  • Look for Tyuyamunite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Tyuyamunite in the Natural History Museum (London) online catalogue
  • Tyuyamunite details from Handbook of Mineralogy (PDF)
    • Mineral Dealers:
  • Search for Tyuyamunite at Thames Valley Minerals
  • Top quality minerals from Kristalle of California
  • High-end worldwide specimens & outstanding customer service
  • Buy fine minerals and gemstones from Pala International
  • Wright's Rock Shop - excellent mineral specimens since 1970
  • Rare and Unusual minerals at Mineralogical Research Company
  • Wilensky Fine Minerals
  • Find Tyuyamunite on www.crystalclassics.co.uk
  • SpiriferMinerals.com - high quality specimens
  • Wendel Minerals - Auktion & Shop
  • Buy from David K Joyce minerals
  • rare and unusual minerals mainly crystallized
    • Jobs:
  • Mining & Geology Jobs

    • Page Sponsor

    Sponsorship:This page is currently not sponsored. Click here to sponsor this page.

    Localities for Tyuyamunite

    Show Locality List (565 Items)
    The 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.
    These maps work faster with Firefox!
    Mineral and/or Locality
    Google
     
    www.mindat.org Web
    Copyright © Jolyon Ralph and Ida Chau 1993-2009. 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. If you would like to add information to improve the quality of our database, then click here to register.