Valleriite Mineral Data + Say VALLERIITE


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General Valleriite Information
Help on Chemical Formula: Chemical Formula: 4(Fe,Cu)S·3(Mg,Al)(OH)2
Help on Composition: Composition: Molecular Weight = 475.92 gm
   Magnesium   8.68 %  Mg
   Aluminum    7.37 %  Al
   Iron       25.82 %  Fe
   Copper     24.03 %  Cu
   Hydrogen    0.42 %  H
   Sulfur     26.95 %  S
   Oxygen      6.72 %  O
             ______ 
             100.00 % 
Help on Empirical Formula: Empirical Formula: Fe2+2.2Cu1.8S4Mg1.7Al1.3(OH)2
Help on Environment: Environment: An alteration product of chalcopyrite in chromatites and dunites.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1870
Help on Locality: Locality: Aurora mine, Ljusnarsberg, and Kaveltorp, Kopparberg, Sweden. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Goran Wallerius (Vallerius) (1683-1742), a Swedish mining geologist.
 

Valleriite Image

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Valleriite

Comments: Bronze-brown colored metallic valleriite, somewhat foliated.
Location: Pima Mine, near Tucson, Pima County, Arizona, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Valleriite Crystallography
Help on Axial Ratios: Axial Ratios: a:c = 1:8.99261
Help on Cell Dimensions: Cell Dimensions: a = 3.792, c = 34.1, Z = 2; V = 424.64 Den(Calc)= 3.72
Help on Crystal System: Crystal System: Trigonal - Hexagonal ScalenohedralH-M Symbol (3 2/m) Space Group: R 3m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 5.71(1), 11.4(1), 3.37(0.6),
 

Physical Properties of Valleriite

Help on Cleavage: Cleavage: [0001] Perfect
Help on Color: Color: Bronze, Gray.
Help on Density: Density: 3.09 - 3.14, Average = 3.11
Help on Diaphaniety: Diaphaniety: Opaque
Help on Habit: Habit: Massive - Uniformly indistinguishable crystals forming large masses.
Help on Habit: Habit: Nodular - Tuberose forms having irregular protuberances over the surface.
Help on Hardness: Hardness: 1-1.5 - Talc or a little harder
Help on Luster: Luster: Metallic
 

Optical Properties of Valleriite

Help on RL Anisotrophism: RL Anisotrophism: Strong, golden yellow.
Help on RL Pleochroism: RL Pleochroism: Strong, pale yellow to deep brown.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Valleriite in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 400 nm   11.00    8.60 
   
 420 nm   10.80    9.60 
 440 nm   10.60   10.60 
 460 nm   10.40   11.60 
 480 nm   10.40   12.70 
 500 nm   10.30   13.80 
 520 nm   10.20   15.00 
 540 nm   10.20   16.20 
 560 nm   10.20   17.20 
 580 nm   10.20   18.10 
 600 nm   10.20   19.00 
 620 nm   10.20   19.70 
 640 nm   10.20   20.40 
 660 nm   10.30   21.10 
 680 nm   10.30   21.70 
 700 nm   10.40   22.30 
Calculated Relative Intensity Colors of Valleriite in Air
Relative
Intensity		    0%   90% 100% 180% 270% 360% 450% 540% 630% 720% 810% 860%
R1                        
R2                        
 

Calculated Properties of Valleriite

Help on Electron Density: Electron Density:

relectron=3.58 gm/cc
note: rValleriite =3.72 gm/cc.
Help on Fermion Index Fermion Index Fermion Index = 0.0162
Boson Index = 0.9838
Help on Photoelectric: Photoelectric:

PEValleriite = 20.16 barns/electron
U=PEValleriite x relectron= 72.08 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Valleriite is Not Radioactive
 

Valleriite Classification
Help on Dana Class: Dana Class: 2.14.1.1 (2)Sulfides - Including Selenides and Tellurides
  (2.14)(Hydroxyl or Hydrated)
  (2.14.1)Dana Group
 
2.14.1.1 Valleriite 4(Fe,Cu)S·3(Mg,Al)(OH)2 R 3m 3 2/m
Help on Strunz Class: Strunz Class: II/C.23-20 II - Sulfides and sulphosalts
  II/C - Sulfides with metal: sulfur, selenium and tellurium = 1:1
  II/C.23 - Yushkinite - Vyalsovite series
 
II/C.23-10 Yushkinite V1-xS·n(Mg,Al)(OH)2 P 3m1 3m
 
II/C.23-20 Valleriite 4(Fe,Cu)S·3(Mg,Al)(OH)2 R 3m 3 2/m
 
II/C.23-30 Haapalaite 2(Fe,Ni)S·1.6(Mg,Fe)(OH)2 R 3m ? 3 2/m
 
II/C.23-40 Tochilinite 6Fe0.9S·5(Mg,Fe)(OH)2 P 2, Pm, or P 2/m Mono
 
II/C.23-50 Vyalsovite FeS·Ca(OH)2·Al(OH)3 C mmm ? 2/m 2/m 2/m
 

Other Valleriite Information
Help on References: References: NAME( AntBidBlaNic1) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)
Help on See Also: See Also: Links to other databases for Valleriite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - Crocoite.com Mineral Locations 4 - EUROmin Project 5 -Google Images 6 -Google Scholar 7 -Handbook of Mineralogy (UofA) 8 -MinDAT 9 -MinMax(Deutsch) 10 -MinMax(English) 11 -Mineralienatlas (Deutsch) 12 -QUT Mineral Atlas 13 - Scandinavian mineral gallery 14 -École des Mines de Paris

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Valleriite

4(Fe,Cu)S·3(Mg,Al)(OH)2
Dana No: 2.14.1.1 Strunz No: II/C.23-20
Locality:

 

Notes:

 
 
   
 
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