Wulfenite Mineral Data

Wulfenite Mineral Data
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General Wulfenite Information

Help on Chemical Formula: Chemical Formula: PbMoO4
Help on Composition: Composition: Molecular Weight = 367.14 gm
   Molybdenum  26.13 %  Mo   39.21 % MoO3
   Lead        56.44 %  Pb   65.15 % PbO2
   Oxygen      17.43 %  O
              ______        ______ 
              100.00 %      104.36 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Pb(MoO4)
Help on Environment: Environment: Secondary lead mineral. Forms a series with stolzite.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1845
Help on Locality: Locality: Bleiberg, Villach, Kärnten (Carinthia), Austria Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after the Austrian mineralogist, Frantz Xaver von Wulfen (1728-1805).
Help on Name Pronunciation: Name Pronunciation: Wulfenite + Pronunciation Say WULFENITE
Help on Synonym: Synonym: ICSD 26784
  PDF 44-1486
  Yellow Lead Ore
 

Wulfenite Image

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Wulfenite

Comments: Tabular crystal druse of brownish orange wulfenite on matrix.
Location: Ahumada mine, Los Lamentos, Chihuahua, Mexico. Scale: Crystal size 5-10 mm.
© Dave Barthelmy
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Wulfenite   Mimetite

Comments: Gemmy, pale yellow mimetite crystal with brownish-orange wulfenite. Former James and Dawn Minette Collection.
Location: Gem Pocket 1971, Tsumeb, Namibia. Scale: 2 x 1 x 1 cm.
© Rob Lavinsky

Wulfenite Crystallography
Help on Axial Ratios: Axial Ratios: a:c = 1:2.22815
Help on Cell Dimensions: Cell Dimensions: a = 5.435, c = 12.11, Z = 4; V = 357.72 Den(Calc)= 6.82
Help on Crystal System: Crystal System: Tetragonal - DipyramidalH-M Symbol (4/m) Space Group: I 41/a
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.24(1), 2.021(0.3), 1.653(0.25),
Help on Forms: Forms:

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Forms: ( 1 0 1) ( 1 0 0) ( 0 0 1)

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Leciejewicz J , Zeitschrift fur Kristallographie , 121 (1965) p.158-164, A neutron crystallographic investigation of lead molybdenum oxide, PbMoO4, Locality: Los Lamentos, Mexico

View Additional jPOWD Structure files for Wulfenite
[1]
 

Physical Properties of Wulfenite

Help on Cleavage: Cleavage: {101} Imperfect
Help on Color: Color: Orange yellow, Waxy yellow, Yellowish gray, Olive green, Brown.
Help on Density: Density: 6.5 - 7, Average = 6.75
Help on Diaphaneity: Diaphaneity: Subtransparent to subtranslucent
Help on Fracture: Fracture: Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.
Help on Habit: Habit: Massive - Granular - Common texture observed in granite and other igneous rock.
Help on Habit: Habit: Tabular - Form dimensions are thin in one direction.
Help on Hardness: Hardness: 3 - Calcite
Help on Luminescence: Luminescence: Fluorescent, Short UV=yellow to orange to red, Long UV=yellow to orange to red.
Help on Luster: Luster: Resinous - Greasy
Help on Streak: Streak: yellowish white
 

Optical Properties of Wulfenite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.242 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.23 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1984,KPDmeas= 0.2004,KC= 0.1613
Ncalc = 2.05 - 2.13
Help on Optical Data: Optical Data: Uniaxial (-), e=2.304, w=2.402, bire=0.0980.
 

Calculated Properties of Wulfenite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=5.80 gm/cc
note: Specific Gravity of Wulfenite =6.82 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.19
Boson Index = 0.81
Help on Photoelectric: Photoelectric: PEWulfenite =1,066.49 barns/electron
U=PEWulfenite x rElectron Density=6,181.11 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Wulfenite is Not Radioactive
 

Wulfenite Classification
Help on Dana Class: Dana Class: 48.01.03.01 (48)Anhydrous Molybdates and Tungstates
  (48.01)where A XO4
  (48.01.03)Wulfenite Series
 
48.01.03.01 Wulfenite PbMoO4 I 41/a 4/m
 
48.01.03.02 Stolzite PbWO4 I 41/a 4/m
Help on Strunz Class: Strunz Class: 07.GA.05 07 - SULFATES (SELENATES, TELLURATES)
  07.G - Molybdates, Wolframates and Niobates
  07.GA -Without additional anions or H2O
 
07.GA.05 Fergusonite-(Ce)* (Ce,La,Y)NbO4 I 41/a 4/m
 
07.GA.05 Fergusonite-(Nd)* (Nd,Ce)(Nb,Ti)O4 I 41/a 4/m
 
07.GA.05 Fergusonite-(Y) YNbO4 I 41/a 4/m
 
07.GA.05 Stolzite PbWO4 I 41/a 4/m
 
07.GA.05 Scheelite CaWO4 I 41/a 4/m
 
07.GA.05 Powellite CaMoO4 I 41/a 4/m
 
07.GA.05 Wulfenite PbMoO4 I 41/a 4/m
 

Other Wulfenite Information
Help on References: References: NAME( Duda&Rejl90) PHYS. PROP.(Collectors Book of Fluorescent Minerals) OPTIC PROP.(Ford32)
Help on See Also: See Also: Links to other databases for Wulfenite :
1 - Alkali-Nuts(English)
2 - Alkali-Nuts(Francais)
3 - Am. Min. Crystal Structure Database
4 - Amethyst Galleries' Mineral Gallery
5 - Athena
6 - EUROmin Project
7 - Ecole des Mines de Paris
8 - Glendale Community College
9 - Google Images
10 - Google Scholar
11 - Handbook of Mineralogy (MinSocAm)
12 - Handbook of Mineralogy (UofA)
13 - HyperPhysics
14 - MinDAT
15 - MinMax(Deutsch)
16 - MinMax(English)
17 - Mineral of the Month
18 - Mineralienatlas (Deutsch)
19 - NSDL Reciprocal Net (JAVA)
20 - Philatelic Mineralogy
21 - QUT Mineral Atlas
22 - Ruff.Info
23 - Tradeshop.com - The Rainbow of Gems
24 - University of Colorado - Mineral Structure Data
25 - WWW-MINCRYST
26 - YupRocks
27 - theimage

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Wulfenite

PbMoO4
Dana No: 48.01.03.01 Strunz No: 07.GA.05
Locality:

 

Notes: