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About HuemuliteHide

Na4Mg(V10O28) · 24H2O
Yellowish orange to orange
Adamantine, Sub-Adamantine, Vitreous, Sub-Vitreous, Dull
2½ - 3
Specific Gravity:
Crystal System:
Member of:
Named in 1966 by C. E. Gordillo, E. Linares, R. O. Toubes, and Horace Winchell for one of the type localities: Huemul Mine, Mendoza Province, Argentina.
Easily soluble in water.

Classification of HuemuliteHide

First Published:

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

2 : Anhydrous Vanadium Oxysalts Containing Hydroxyl or Halogen

21 : Vanadates (and vanadates with arsenate or phosphate)
1 : Vanadates of the alkalis and Cu

Physical Properties of HuemuliteHide

Adamantine, Sub-Adamantine, Vitreous, Sub-Vitreous, Dull
Transparent, Translucent
Natural fine-grained material is dull
Yellowish orange to orange
2½ - 3 on Mohs scale
{001} perfect; {010} good
2.39(5) g/cm3 (Measured)    2.404 g/cm3 (Calculated)

Optical Data of HuemuliteHide

Biaxial (-)
RI values:
nα = 1.679(3) nβ = 1.734(3) nγ = 1.742(2)
Measured: 20° to 25°, Calculated: 40°
Max Birefringence:
δ = 0.063
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
r > v strong
X= light yellow
Y= golden yellow
Z= yellowish orange

Chemical Properties of HuemuliteHide

Na4Mg(V10O28) · 24H2O
IMA Formula:
Na4MgV5+10O28 · 24H2O

Crystallography of HuemuliteHide

Crystal System:
Cell Parameters:
a = 11.770 Å, b = 11.838 Å, c = 9.018(9) Å
α = 107.2°, β = 112.2°, γ = 101.5°
a:b:c = 0.994 : 1 : 0.762
Unit Cell V:
1,040.32 ų (Calculated from Unit Cell)
Synthetic crystals are pseudohexagonal elongated along a

X-Ray Powder DiffractionHide

Powder Diffraction Data:
10.59 Å(90)
10.20 Å(55)
9.12 Å(60)
8.22 Å(35)
7.62 Å(100)
6.07 Å(15)
5.26 Å(25)
3.956 Å(20)
3.795 Å(25)
3.054 Å(30)
2.833 Å(35)
Am. Min. 51:8

Type Occurrence of HuemuliteHide

General Appearance of Type Material:
Fibrous crusts and films, also fine-grained granular
Place of Conservation of Type Material:
Smithsonian Museum 120076
Geological Setting of Type Material:
A post-mining mineral derived from Cu-U sandstone/conglomerate deposits.
Associated Minerals at Type Locality:
Gordillo, C.E., Linares, E., Toubes, R.O., Winchell, H. (1966) Huemulite, Na4MgV10O28·24H2O, a new hydrous sodium a magnesium vanadate from Huemul mine, Mendoza province, Argentina. American Mineralogist: 51: 1-13.

Synonyms of HuemuliteHide

Other Language Names for HuemuliteHide


Relationship of Huemulite to other SpeciesHide

Member of:
Other Members of this group:
HummeriteK2Mg2(V10O28) · 16H2OTric.
LasaliteNa2Mg2(V10O28) · 20H2OMon. 2/m : B2/b
MagnesiopascoiteCa2Mg(V10O28) · 16H2OMon. 2/m : B2/m
PascoiteCa3(V10O28) · 17H2OMon. 2 : B2
RakovaniteNa3(H3V10O28) · 15H2OMon. 2/m

Related Minerals - Nickel-Strunz GroupingHide

4.HG.CalciodelrioiteCa(VO3)2·4H2O Mon. 2/m : B2/b
4.HG.05FervaniteFe3+4V5+4O16 · 5H2OMon.
4.HG.15VanaliteNaAl8V10O38 · 30H2OMon.
4.HG.20SimplotiteCaV4+4O9 · 5H2OMon.
4.HG.25VanoxiteV4+4V5+2O13 · 8H2O
4.HG.30NavajoiteFe3+V5+9O24 · 12H2OMon. 2/m : B2/m
4.HG.35DelrioiteCaSr(V2O6)(OH)2 · 3H2OMon.
4.HG.45Barnesite(Na,Ca)V6O16 · 3H2OMon. 2/m : P2/m
4.HG.50Hendersonite(Ca,Sr)1.3V6O16 · 6H2OOrth.
4.HG.55Grantsite(Na,Ca)2+x(V5+,V4+)6O16 · 4H2OMon. 2/m : P21/m
4.HG.60LenobliteV4+2O4 · 2H2OOrth. 2 2 2 : P21 21 21
4.HG.65SatpaeviteAl12V4+2V5+6O37 · 30H2O

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

21.1.2MuniriteNaVO3 · 1.9H2OMon.
21.1.3Barnesite(Na,Ca)V6O16 · 3H2OMon. 2/m : P2/m
21.1.4Bannermanite(Na,K)0.7V4+0.7V5+5.3O15Mon. 2/m : B2/m
21.1.5HowardevansiteNaCuFe2(VO4)3Tric. 1 : P1
21.1.7Blossiteα-Cu2(V2O7)Orth. mm2 : Fdd2
21.1.10McbirneyiteCu3(VO4)2Tric. 1 : P1
21.1.11FingeriteCu11(VO4)6O2Tric. 1 : P1
21.1.12VolborthiteCu3(V2O7)(OH)2 · 2H2OMon. 2/m : B2/m
21.1.13TangeiteCaCu(VO4)(OH)Orth. 2 2 2 : P21 21 21
21.1.14VésigniéiteBaCu3(VO4)2(OH)2Mon. 2/m : B2/m

Fluorescence of HuemuliteHide

Not fluorescent in UV

Other InformationHide

Thermal Behaviour:
Melts at 500 C.
Soluble in water. Most properties measured on recrystallized material.
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for HuemuliteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Gordillo, C.E., Linares, E., Toubes, R.O., Winchell, H. (1966) Huemulite, Na4MgV10O28·24H2O, a new hydrous sodium a magnesium vanadate from Huemul mine, Mendoza province, Argentina. American Mineralogist: 51: 1-13.
Fleischer, M. (1969) New mineral names. American Mineralogist: 54: 326-330.
Frost, R.L., Erickson, K.L., Weier, M.L. (2004) Hydrogen bonding in selected vanadates: a Raman and infrared spectroscopy study. Spectrochimica Acta Part A: 60: 2419.
Colombo, B., Baggio, R., Kampf, A.R. (2011) The crystal structure of the elusive huemulite. Canadian Mineralogist: 49: 849-864.

Internet Links for HuemuliteHide

Localities for HuemuliteHide

This 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.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
  • Mendoza Province
    • Malargüe Department
      • Pampa Amarilla District
Gordillo, C.E., Linares, E., Toubes, R.O., Winchell, H. (1966) Huemulite, Na4MgV10O28·24H2O, a new hydrous sodium a magnesium vanadate from Huemul mine, Mendoza province, Argentina. The American Mineralogist, 51(1-2), 1-13.
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)
Gordillo, C.E., E. Linares, R.O. Toubes, H. Winchell (1966) American Mineralogist: 51: 1-13.
Czech Republic
  • Central Bohemian Region
Josef Vajdak (2008) Mineral News, 24, #3, 15.
      • Háje
Lapis 7-8/2003
  • Attica
    • East Attica
      • Lavreotiki
        • Lavrion District slag localities
          • Agios Konstantinos [St Constantine] (Kamariza)
Gunnar Färber (identification method not given); Stephan Wolfsried collection; Koshlyakova, N.N., Zubkova, N.V., Pekov, I.V., Giester, G., Pushcharovsky, D.Yu., Chukanov, N.V., Voudouris, P., Magganas, A., Katerinopoulos, A. (2016): Crystal chemistry of a Ni-Mg-analogue of lyonsite from slags of Lavrion, Greece. Neues Jahrbuch für Mineralogie - Abhandlungen: Journal of Mineralogy and Geochemistry 193, 113-120.
  • Catalonia
    • Lleida (Lérida)
      • El Pallars Jussà
        • La Vall Fosca
          • La Torre de Cabdella (La Torre de Capdella)
            • Castell-estaó
Joy Desor analysis by Raman spectroscopy and SEM-EDS: Desor, J (2018) New minerals from the Eureka mine.
  • England
    • Devon
      • East Devon
        • Budleigh Salterton
Brian Craik-Smith collection (NHM London XRD ID)
  • Colorado
    • Montrose Co.
      • Bull Canyon Mining District
Anthony R. Kampf, John M. Hughes, Joe Marty, Barbara P. Nash, Yu-Sheng Chen, and Ian M. Steele (2014) Bluestreakite, K4Mg2(V4+2V5+8O28) ·14H2O, a new mixed-valence decavanadate mineral from the Bluestreak Mine, Montrose County, Colorado: crystal structure and descriptive mineralogy. Can Mineral 52:1007-1018; Kampf, A. R., Marty, J., Nash, B. P., Plášil, J., Kasatkin, A. V., & Škoda, R. (2012). Calciodelrioite, Ca (VO3) 2 (H2O) 4, the Ca analogue of delrioite, Sr (VO3) 2 (H2O) 4. Mineralogical Magazine, 76(7), 2803-2817.
    • San Miguel Co.
      • Slick Rock Mining District
Kampf, A. R., Plášil, J., Nash, B. P., & Marty, J. (2019). Ammoniomathesiusite, a new uranyl sulfate–vanadate mineral from the Burro mine, San Miguel County, Colorado, USA. Mineralogical Magazine, 83(1), 115-121.
Collected by and in the collection of Joe Marty. p-XRD analayzed by Tony Kampf.
Kampf, A.R., Marty, J., Nash, B.P., Plášil, J., Kasatkin, A.V., Škoda, R. (2012): Calciodelrioite, Ca(VO3)2(H2O)4, the Ca analogue of delrioite, Sr(VO3)2(H2O)4. Mineralogical Magazine, 76, 2803-2817.
      • Uravan Mining District
Collected by and in the collection of Brent Thorne. EDS analyzed by Bob Housley and PXRD analyzed by Tony Kampf.
  • Nevada
    • Eureka Co.
      • Fish Creek Mining District
NBMG Spec. Pub. 31 Minerals of Nevada
      • Gibellini Mining District
        • Fish Creek Range
Rocks & Minerals, Nov. 1999
NBMG Spec. Pub. 31 Minerals of Nevada
Frost, R.L., K.L. Erickson, M.L. Weier, and O. Carmody, Raman and infrared spectroscopy of selected vanadates. Spectrochimica Acta, Part A: Molecular and Biomolecular Spectroscopy, 2005. 61A(5): p. 829-834.
  • Utah
    • Grand Co.
      • Thompsons Mining District
        • D-Day Mine group
Pavel M. Kartashov analytical data 2015
        • Yellow Cat Mesa
Kasatkin, A.V., Plášil, J., Marty, J., Belakovskiy, D.I., Lykova, I.S. (2014): Nestolaite, CaSeO3·H2O, a new mineral from the Little Eva mine, Grand County, Utah, USA. Mineralogical Magazine, 78, 497-505. ; Kasatkin, A. V., Plasil, J., Pekov, I. V., Belakovskiy, D. I., Nestola, F., Cejka, J., ... & Thorne, B. (2015). Karpenkoite, Co3 (V2O7)(OH) 2· 2H2O, a cobalt analogue of martyite from the Little Eva mine, Grand County, Utah, USA. Journal of Geosciences, 60(4), 251-257.
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