Wroewolfeite Mineral Data

Wroewolfeite Mineral Data +

[Current Minerals] [Order Status] [Policies] [e-Bay Items]
B & L Minerals, Fine Mineral specimens for sale for collectors of all levels

General Wroewolfeite Information

Chemical Formula:

Cu4(SO4)(OH)6·2(H2O)

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

Empirical Formula:

Cu₄(SO₄)(OH)₆·2(H₂O)

Environment:

Oxidation zone of an old lead mine.

IMA Status:

Approved IMA 1975

Locality:

Loudville, Maryland, USA. Link to MinDat.org Location Data.

Name Origin:

Named for Caleb Wroe Wolfe (1908-1980), crystallographer, Boston University.

Synonym:

ICSD 40091

PDF 27-1133

Wroewolfeite Image

Images:

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

Axial Ratios:

a:b:c =0.9101:1:2.1574

Cell Dimensions:

a = 6.058, b = 6.656, c = 14.36, Z = 2; beta = 93.467° V = 577.96 Den(Calc)= 2.81

Crystal System:

Monoclinic - DomaticH-M Symbol (m) Space Group: Pc

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 7.15(1), 3.581(0.7), 2.628(0.35),

Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
Help on Above

Hawthorne F C , Groat L A , American Mineralogist , 70 (1985) p.1050-1055, The crystal structure of wroewolfeite, a mineral with, [Cu4(OH)6(SO4)(H2O)] sheets

Physical Properties of Wroewolfeite

Cleavage:

[010] Perfect, [100] Perfect, [001] Perfect

Color:

Greenish blue, Dark greenish blue.

Density:

3.27

Habit:

Encrustations - Forms crust-like aggregates on matrix.

Hardness:

2.5 - Finger Nail

Luster:

Vitreous (Glassy)

Streak:

light blue

Optical Properties of Wroewolfeite

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

Optical Data:

Biaxial (-), a=1.637, b=1.682, g=1.694, bire=0.0570, 2V(Calc)=52, 2V(Meas)=53.

Pleochroism (x):

light blue.

Pleochroism (y):

deep greenish blue.

Pleochroism (z):

greenish blue.

Calculated Properties of Wroewolfeite

Electron Density:

r_electron=3.19 gm/cc
note: r_Wroewolfeite=3.27 gm/cc.

Fermion Index

Fermion Index = 0.00068
Boson Index = 0.99932

Photoelectric:

PE_Wroewolfeite= 22.95 barns/electron
U=PE_Wroewolfeite x r_electron= 73.16 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Wroewolfeite is Not Radioactive

Wroewolfeite Classification

Dana Class:

31.4.2.1 (31)Hydrated Sulfates Containing Hydroxyl or Halogen

(31.4)where (A+ B++)4 (XO4) Zq·x(H2O)

(31.4.2)Dana Group

31.4.2.1 Wroewolfeite Cu4(SO4)(OH)6·2(H2O) Pc m

Strunz Class:

VI/D.03-30 VI - Sulfates,Chromates,Molybdates and Tungstates

VI/D - Water-bearing sulfates with unfamiliar anions. cations of medium size

VI/D.03 - Langite series, Posnjakite - Nakuriite

VI/D.03-10 Posnjakite Cu4(SO4)(OH)6·(H2O) C 2/c 2/m

VI/D.03-20 Langite Cu4(SO4)(OH)6·2(H2O) Pc m

VI/D.03-30 Wroewolfeite Cu4(SO4)(OH)6·2(H2O) Pc m

VI/D.03-40 Namuwite (Zn,Cu)4(SO4)(OH)6·4(H2O) Unk Hex

VI/D.03-50 Guarinoite (Zn,Co,Ni)6(SO4)(OH,Cl)10·5(H2O) P 6₃/m,P 6₃, or P 6₃22 Hex

VI/D.03-55 Theresemagnanite (Co,Zn,Ni)6(SO4)(OH,Cl)10·8(H2O) P 6₃ 6

VI/D.03-60 Schulenbergite (Cu,Zn)7(SO4,CO3)2(OH)10·3(H2O) P 3 or P 3- Trig

VI/D.03-65 Christelite! Zn3Cu2(SO4)2(OH)6·4(H2O) P1 1

VI/D.03-70 Ktenasite (Cu,Zn)5(SO4)2(OH)6·6(H2O) P 2₁/c 2/m

VI/D.03-75 Ramsbeckite (Cu,Zn)15(SO4)4(OH)22·6(H2O) P 2₁/a 2/m

VI/D.03-80 Campigliaite Cu4Mn(SO4)2(OH)6·4(H2O) C 2 2

VI/D.03-90 Nakauriite (Mn,Ni,Cu)8(SO4)4(CO3)(OH)6·48(H2O) Unk Ortho

Other Wroewolfeite Information

References:

NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8)

See Also:

Links to other databases for Wroewolfeite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 - WWW-MINCRYST 13 -École des Mines de Paris

Search for Wroewolfeite using:

[ALTAVISTA] [AOL] [About.com] [All-The-Web] [HotBot] [Ixquick] [LookSmart] [MAMMA] [MSN.COM] [Netscape] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Wroewolfeite :
AA Mineral Specimens
B and L Minerals
Dan Weinrich Fine Minerals
Dan Weinrich Auctions
e-Rocks Auctions
Excalibur Minerals
Exceptional Minerals
Fabre Minerals
Greenside Minerals
John Betts Fine Minerals
Masons Minerals
Minernet.it
Mineral News
Mineral of the Month Club
MineralsWeb Fine Minerals
Rockshop.cz Kalat Fine Minerals
T G Fine Minerals
Wrights Rock Shop

Translate Wroewolfeite Mineral Data :

Ask about Wroewolfeite 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 Español

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

Wroewolfeite

Cu4(SO4)(OH)6·2(H2O)
Dana No: 31.4.2.1 Strunz No: VI/D.03-30
Locality:

Notes: