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Wroewolfeite Mineral Data

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General Wroewolfeite Information

Help on Chemical  Formula: Chemical Formula: Cu4(SO4)(OH)6•2(H2O)
Help on Composition: Composition: Molecular Weight = 488.32 gm
   Copper    52.05 %  Cu   65.16 % CuO
   Hydrogen   2.06 %  H    18.45 % H2O
   Sulfur     6.57 %  S    16.40 % SO3
   Oxygen    39.32 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Cu4(SO4)(OH)6•2(H2O)
Help on Environment: Environment: Oxidation zone of an old lead mine.
Help on IMA Status: IMA Status: Approved IMA 1975
Help on Locality: Locality: Loudville, Maryland, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Caleb Wroe Wolfe (1908-1980), crystallographer, Boston University.
Help on Name Pronunciation: Name Pronunciation: Wroewolfeite + Pronunciation Say WROEWOLFEITE
Help on Synonym: Synonym: ICSD 40091
  PDF 27-1133
 

Wroewolfeite Image

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  Wroewolfeite

Comments: Blue, lath-shaped crystals of wroewolfeite on matrix.
Location: Lichtenberg Mine, Ronneburg U Deposit, Gera district, Thuringia, Germany. Scale: Picture size 1.5 mm.
© Thomas Witzke / Abraxas-Verlag

Wroewolfeite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.9101:1:2.1574
Help on Cell Dimensions: Cell Dimensions: a = 6.058, b = 6.656, c = 14.36, Z = 2; beta = 93.467° V = 577.96 Den(Calc)= 2.81
Help on Crystal System: Crystal System: Monoclinic - Domatic H-M Symbol (m) Space Group: Pc
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 7.15(1), 3.581(0.7), 2.628(0.35),
 

Physical Properties of Wroewolfeite

Help on Cleavage: Cleavage: {010} Perfect, {100} Perfect, {001} Perfect
Help on Color: Color: Greenish blue, Dark greenish blue.
Help on Density: Density: 3.27
Help on Habit: Habit: Encrustations - Forms crust-like aggregates on matrix.
Help on Hardness: Hardness: 2.5 - Finger Nail
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: light blue
 

Optical Properties of Wroewolfeite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.013 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.179 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2388,KPDmeas= 0.2052,KC= 0.2025
Ncalc = 1.57 - 1.66
Help on Optical Data: Optical Data: Biaxial (-), a=1.637, b=1.682, g=1.694, bire=0.0570, 2V(Calc)=52, 2V(Meas)=53.
Help on Pleochroism (x): Pleochroism (x): light blue.
Help on Pleochroism (y): Pleochroism (y): deep greenish blue.
Help on Pleochroism (z): Pleochroism (z): greenish blue.
 

Calculated Properties of Wroewolfeite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.19 gm/cc
note: Specific Gravity of Wroewolfeite =3.27 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0006843094
Boson Index = 0.9993156906
Help on Photoelectric: Photoelectric: PEWroewolfeite = 22.95 barns/electron
U=PEWroewolfeite x rElectron Density= 73.16 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Wroewolfeite is Not Radioactive
 

Wroewolfeite Classification

Help on  Dana Class: Dana Class: 31.04.02.01 (31)Hydrated Sulfates Containing Hydroxyl or Halogen
  (31.04)where (A+ B++)4 (XO4) Zq�x(H2O)
  (31.04.02)Dana Group
 
31.04.02.01 Wroewolfeite Cu4(SO4)(OH)6•2(H2O) Pc m
Help on  Strunz Class: Strunz Class: 07.DD.10 07 - SULFATES (SELENATES, TELLURATES)
  07.D - Sulfates (selenates, etc.) with additional anions, with H2O
  07.DD -With only medium-sized cations; sheets of edge-sharing octahedra
 
07.DD.10 Langite Cu4(SO4)(OH)6•2(H2O) Pc m
 
07.DD.10 Posnjakite Cu4(SO4)(OH)6•(H2O) C 2/c 2/m
 
07.DD.10 Wroewolfeite Cu4(SO4)(OH)6•2(H2O) Pc m
 

Other Wroewolfeite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Wroewolfeite :
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
15 - WWW-MINCRYST

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Wroewolfeite

Cu4(SO4)(OH)6•2(H2O)
Dana No: 31.04.02.01 Strunz No: 07.DD.10
Locality:

 

Notes:

 

 
   
 


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