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

Huemulite

Big Photo

The Fish, Gibellini District, Eureka Co., Nevada, USA
© 2008, JGW

Formula:
Na
 
4
Mg[V
 
10
O
 
28
] · 24H
 
2
O
System:TriclinicColour:Yellowish orange to ...
Hardness:2½ - 3
Name:For the type locality.
This page provides mineralogical data about Huemulite.

Classification of Huemulite

IMA status:Approved
Strunz 8th edition ID:4/G.01-10
Nickel-Strunz 10th (pending) edition ID:4.HG.10

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
H : V[5,6] Vanadates
G : Unclassified V oxides
Dana 8th edition ID:47.2.3.1

47 : VANADIUM OXYSALTS
2 : Anhydrous Vanadium Oxysalts Containing Hydroxyl or Halogen
Hey's CIM Ref.:21.1.6

21 : Vanadates (and vanadates with arsenate or phosphate)
1 : Vanadates of the alkalis and Cu
mindat.org URL:http://www.mindat.org/min-1941.html
Please feel free to link to this page.

Type Occurrence of Huemulite

Type Locality:Huemul Mine, Pampa Amarilla District, Malargüe Department, Mendoza, Argentina
General Appearance of Type Material:Massive
Place of Conservation of Type Material:Smithsonian Museum 120076
Year of Discovery:1966
Geological Setting of type material:In a Cu-U sandstone/conglomerate deposits.

Physical Properties of Huemulite

Lustre:Dull
Diaphaneity (Transparency):Translucent
Colour:Yellowish orange to orange
Streak:Yellow
Hardness (Mohs):2½ - 3
Density (measured):02.39(5) g/cm3
Density (calculated):02.404 g/cm3

Crystallography of Huemulite

Crystal System:Triclinic
Cell Parameters:a = 11.77Å, b = 11.83Å, c = 9.018(9) Å
α = 107.2°, β = 112.2°, γ = 101.5°
Ratio:a:b:c = 0.995 : 1 : 0.762
Unit Cell Volume:V 1,039.62 ų (Calculated from Unit Cell)
Z:1

Optical Data of Huemulite

Type:Biaxial (-)
RI values: nα = 1.679(3) nβ = 1.734(3) nγ = 1.742(2)
2V:Measured: 25° to 30°, Calculated: 40°
Maximum Birefringence:δ = 0.063

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:High
Dispersion:r > v strong
Pleochroism:Visible
Comments:X= light yellow
Y= golden yellow
Z= yellowish orange

Chemical Properties of Huemulite

Formula:
Na
 
4
Mg[V
 
10
O
 
28
] · 24H
 
2
O
Essential elements:H, Mg, Na, O, V
All elements listed in formula:H, Mg, Na, O, V

Relationship of Huemulite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
4.HG.05Fervanite
Fe
 
4
(VO
 
4
)
 
4
·5H
 
2
O
4.HG.15Vanalite
NaAl
 
8
V
 
10
O
 
38
·30H
 
2
O
4.HG.20Simplotite
CaV
 
4
O
 
9
·5H
 
2
O
4.HG.25Vanoxite
V
 
6
O
 
13
·8H
 
2
O
4.HG.30Navajoite
V
 
2
O
 
5
 · 3H
 
2
O
4.HG.35Delrioite
CaSr[(OH)
 
2
|V
 
2
O
 
6
] · 3H
 
2
O
4.HG.40Metadelrioite
CaSr[(OH)
 
2
|V
 
2
O
 
6
]
4.HG.45Barnesite
Na
 
2
[V
 
2
O
 
6
|V
 
4
O
 
10
] · 3H
 
2
O
4.HG.50Hendersonite
(Ca,Sr)
 
x
(V
5+
 
,V
4+
 
)
 
12
O
 
32
·12H
 
2
O (x about 2.6)
4.HG.55Grantsite
(Na
 
2
,Ca)[V
 
2
O
 
6
|(V
5+
 
,V
4+
 
)
 
4
O
 
10
] · 4H
 
2
O
4.HG.60Lenoblite
V
 
2
O
 
4
·2H
 
2
O
4.HG.65Satpaevite
Al
 
12
V
 
2
V
 
6
O
 
37
·30H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
21.1.1Metamunirite
NaVO
 
3
21.1.2Munirite
NaVO
 
3
·2H
 
2
O
21.1.3Barnesite
Na
 
2
[V
 
2
O
 
6
|V
 
4
O
 
10
] · 3H
 
2
O
21.1.4Bannermanite
(Na,K)
 
0.7
V
4+
0.7
V
5+
5.3
O
 
15
21.1.5Howardevansite
NaCuFe
 
2
(VO
 
4
)
 
3
21.1.7Blossite
α-Cu
 
2
[V
 
2
O
 
7
]
21.1.8Ziesite
β-Cu
 
2
[V
 
2
O
 
7
]
21.1.9Stoiberite
Cu
 
5
[O
 
2
|(VO
 
4
)
 
2
]
21.1.10Mcbirneyite
Cu
 
3
(VO
 
4
)
 
2
21.1.11Fingerite
Cu
 
11
[O
 
2
|(VO
 
4
)
 
6
]
21.1.12Volborthite
Cu
 
3
[(OH)
 
2
|V
 
2
O
 
7
] · 2H
 
2
O
21.1.13Tangeite
CaCu[OH|VO
 
4
]
21.1.14Vésigniéite
BaCu
 
3
[OH|VO
 
4
]
 
2
21.1.15Lyonsite
Cu
 
3
Fe
 
4
(VO
 
4
)
 
6

Other Names for Huemulite

Synonyms:
IMA1965-012
Other Languages:
German:Huemulit
Spanish:Huemulita

Other Information

Thermal Behaviour:Melts at 500 C.
Other Information:Soluble in water. Most properties measured on recrystallized material.
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 Huemulite

Reference List:American Mineralogist: 51: 1-13.

Internet Links for Huemulite

Search Engines:
  • Look for Huemulite on Google
  • Look for Huemulite images on Google
    • External Links:
  • Look for Huemulite on Webmineral
  • Look for Huemulite on Athena Mineralogy
  • Look for Huemulite on Wikipedia
  • Look for Huemulite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Huemulite in the Natural History Museum (London) online catalogue
  • Huemulite details from Handbook of Mineralogy (PDF)
    • Mineral Dealers:
  • DAKOTA MATRIX offers Cabinet and Rare Species from Worldwide Localities.
  • Lapis Mineral Magazin
  • Buy Minerals and Crystals from Crystalarium.com
  • Fine Minerals from Dan Weinrich Minerals
  • Buy fine minerals and gemstones from Pala International
  • Mineral Classics - Worldwide Collector Quality Minerals and Gems
  • Edwards Minerals - Fine Specimens
  • Top quality minerals from Kristalle of California
  • Wilensky Fine Minerals
  • rare and unusual minerals mainly crystallized
  • Fabre Minerals - search for Huemulite specimens
  • Wendel Minerals - Auktion & Shop
    • Jobs:
  • Mining & Geology Jobs

    • Page Sponsor

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

    Localities for Huemulite

    Hide Locality List
    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.
    (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.
    Argentina
     
    • Mendoza
      • Malargüe Department
    		J.W. Anthony, R.A. Bideaux, K.W. Bladh, M.C. Nichols: Handbook of Mineralogy, Vol. III (1997)
    J.W. Anthony, R.A. Bideaux, K.W. Bladh, M.C. Nichols: Handbook of Mineralogy, Vol. III (1997)
        • Pampa Amarilla District
    		Gordillo, C.E., E. Linares, R.O. Toubes, H. Winchell (1966) American Mineralogist: 51: 1-13.
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Central Bohemia Region
    		Josef Vajdak (2008) Mineral News, 24, #3, 15.
    Lapis 7-8/2003
    UK
     
    • England
      • Devon
        • East Devon
    		Brian Craik-Smith collection (NHM London XRD ID)
    USA
     
    • Nevada
      • Eureka Co.
        • Fish Creek District
    		NBMG Spec. Pub. 31 Minerals of Nevada
        • Gibellini District
    		NBMG Spec. Pub. 31 Minerals of Nevada
    Rocks & Minerals, Nov. 1999
    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. Current server date and time: 29th Oct 2009 10:29:00