Huemulite Mineral Data

Huemulite Mineral Data
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General Huemulite Information

Help on Chemical Formula: Chemical Formula: Na4Mg(V10O28)•24(H2O)
Help on Composition: Composition: Molecular Weight = 1,506.03 gm
   Sodium      6.11 %  Na    8.23 % Na2O
   Magnesium   1.61 %  Mg    2.68 % MgO
   Vanadium   33.83 %  V    60.38 % V2O5
   Hydrogen    3.21 %  H    28.71 % H2O
   Oxygen     55.24 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na4MgV5+10O28•24(H2O)
Help on Environment: Environment: Granular coatings on sandstone.
Help on IMA Status: IMA Status: Approved IMA 1966
Help on Locality: Locality: Huemul mine, Mendoza Province, Argentina. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Name Pronunciation: Name Pronunciation: Huemulite + Pronunciation Say HUEMULITE
 

Huemulite Image

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Huemulite

Comments: Brownish orange aggregate of huemulite crystals.
Location: Walker mine, Thompson, Grand County, USA. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Huemulite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.9942:1:0.7617
Help on Cell Dimensions: Cell Dimensions: a = 11.77, b = 11.838, c = 9.018, Z = 1; alpha = 107.22°, beta = 112.17°, gamma = 101.5° V = 1,089.14 Den(Calc)= 2.30
Help on Crystal System: Crystal System: Triclinic - PinacoidalH-M Symbol ( 1) Space Group: P1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 7.62(1), 10.59(0.9), 9.12(0.6),
 

Physical Properties of Huemulite

Help on Cleavage: Cleavage: {???} Perfect
Help on Color: Color: Yellow, Yellow orange, Red orange.
Help on Density: Density: 2.39
Help on Habit: Habit: Encrustations - Forms crust-like aggregates on matrix.
Help on Hardness: Hardness: 2.5-3 - Finger Nail-Calcite
Help on Luster: Luster: Vitreous - Dull
Help on Streak: Streak: yellow
 

Optical Properties of Huemulite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.072 (Fair) - where the CI = (1-KPDmeas/KC)
CI calc= 0.076 (Fair) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2993,KPDmeas= 0.3006,KC= 0.3239
Ncalc = 1.77 - 1.78
Help on Optical Data: Optical Data: Biaxial (-), a=1.679, b=1.734, g=1.742, bire=0.0630, 2V(Calc)=40, 2V(Meas)=25-30. Dispersion r > v strong.
Help on Pleochroism (x): Pleochroism (x): pale yellow.
Help on Pleochroism (y): Pleochroism (y): golden yellow.
Help on Pleochroism (z): Pleochroism (z): yellow orange.
 

Calculated Properties of Huemulite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.38 gm/cc
note: Specific Gravity of Huemulite =2.39 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0027294559
Boson Index = 0.9972705441
Help on Photoelectric: Photoelectric: PEHuemulite = 6.48 barns/electron
U=PEHuemulite x rElectron Density= 15.43 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Huemulite is Not Radioactive
 

Huemulite Classification
Help on Dana Class: Dana Class: 47.02.03.01 (47)Vanadium Oxysalts
  (47.02)(VmOn)
  (47.02.03)Dana Group
 
47.02.03.01 Huemulite Na4Mg(V10O28)•24(H2O) P1 1
Help on Strunz Class: Strunz Class: 04.HG.10 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
  04.H - V[5,6] Vanadates
  04.HG -Unclassified V oxides
 
04.HG.10 Huemulite Na4Mg(V10O28)•24(H2O) P1 1
 

Other Huemulite Information
Help on References: References: NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Huemulite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

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Ask about Huemulite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Espaņol

Print or Cut-and-Paste your Huemulite Specimen Label here :

Huemulite

Na4Mg(V10O28)•24(H2O)
Dana No: 47.02.03.01 Strunz No: 04.HG.10
Locality:

 

Notes: