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Huemulite

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About HuemuliteHide

Formula:
Na4Mg(V10O28) · 24H2O
Colour:
Yellowish orange to orange
Lustre:
Adamantine, Sub-Adamantine, Vitreous, Sub-Vitreous, Dull
Hardness:
2½ - 3
Specific Gravity:
2.39
Crystal System:
Triclinic
Member of:
Name:
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

Approved
First Published:
1966
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
47.2.3.1

47 : VANADIUM OXYSALTS
2 : Anhydrous Vanadium Oxysalts Containing Hydroxyl or Halogen
21.1.6

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
Transparency:
Transparent, Translucent
Comment:
Natural fine-grained material is dull
Colour:
Yellowish orange to orange
Streak:
Yellow
Hardness:
2½ - 3 on Mohs scale
Tenacity:
Brittle
Cleavage:
Perfect
{001} perfect; {010} good
Density:
2.39(5) g/cm3 (Measured)    2.404 g/cm3 (Calculated)

Optical Data of HuemuliteHide

Type:
Biaxial (-)
RI values:
nα = 1.679(3) nβ = 1.734(3) nγ = 1.742(2)
2V:
Measured: 20° to 25°, Calculated: 40°
Birefringence:
0.063
Max Birefringence:
δ = 0.063
Image 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 HuemuliteHide

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

Crystallography of HuemuliteHide

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

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
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)
Comments:
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:
Reference:
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

German:Huemulit
Spanish:Huemulita

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.40MetadelrioiteCaSr(V2O6)(OH)2Tric.
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 · 30H2OOrth.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

21.1.1MetamuniriteNaVO3Orth.
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
21.1.8Ziesiteβ-Cu2(V2O7)Mon.
21.1.9StoiberiteCu5(VO4)2O2Mon.
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
21.1.15LyonsiteCu3Fe4(VO4)6Orth.

Fluorescence of HuemuliteHide

Not fluorescent in UV

Other InformationHide

Thermal Behaviour:
Melts at 500 C.
Notes:
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.
Argentina
 
  • Mendoza Province
    • Malargüe Department
      • Pampa Amarilla mining 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
Greece
 
  • Attica
    • East Attica
      • Lavreotiki
        • Lavrion slag localities
          • Agios Konstantinos (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.
Spain
 
  • 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. http://mineralanalytik.de/images/REMBILDER/march18-02.pdf
UK
 
  • England
    • Devon
      • East Devon
        • Budleigh Salterton
Brian Craik-Smith collection (NHM London XRD ID)
USA
 
  • 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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