Litharge Mineral Data

Litharge Mineral Data
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General Litharge Information

Help on Chemical Formula: Chemical Formula: PbO
Help on Composition: Composition: Molecular Weight = 223.20 gm
   Lead    92.83 %  Pb  100.00 % PbO
   Oxygen   7.17 %  O
          ______        ______ 
          100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: PbO
Help on Environment: Environment: Dimorphous with massicot.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1917
Help on Locality: Locality: Cucamonga Peak, San Bernardino Co., California, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named in 1917 from a Greek word given by Diocorides to a material obtained in the process of separating lead from silver by pyrometallurgy.
Help on Name Pronunciation: Name Pronunciation: Litharge Say LITHARGE
Help on Synonym: Synonym: ICSD 62842
  PDF 5-561
 

Litharge Image

Click Here for Larger Litharge Image in a New Browser Window Images:
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Litharge   Massicot

Comments: Dark red litharge with brownish-yellow scaly massicot and white cerussite.
Location: Patagonia, Santa Cruz County, Arizona, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Litharge Crystallography
Help on Axial Ratios: Axial Ratios: a:c = 1:1.26332
Help on Cell Dimensions: Cell Dimensions: a = 3.976, c = 5.023, Z = 2; V = 79.41 Den(Calc)= 9.33
Help on Crystal System: Crystal System: Tetragonal - Ditetragonal DipyramidalH-M Symbol (4/m 2/m 2/m) Space Group: P 4/nmm
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.115(1), 2.809(0.62), 1.872(0.37),
Click Here for Large Litharge Structure Window Crystal Structure:

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Boher P , Garnier P , Gavarri J R , Hewat A W , Journal of Solid State Chemistry , 57 (1985) p.343-350, Monoxyde quadratique PbO alpha(I): Description de la transition structurale ferroelastique, Locality: synthetic, Method: X-ray Diffraction, T = 723 K

 

Physical Properties of Litharge

Help on Cleavage: Cleavage: {110} Distinct
Help on Color: Color: Red.
Help on Density: Density: 9.14 - 9.355, Average = 9.24
Help on Diaphaneity: Diaphaneity: Transparent
Help on Habit: Habit: Encrustations - Forms crust-like aggregates on matrix.
Help on Hardness: Hardness: 2 - Gypsum
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Greasy (Oily)
Help on Streak: Streak: red
 

Optical Properties of Litharge

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.301 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.289 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1715,KPDmeas= 0.173,KC= 0.133
Ncalc = 2.22 - 2.24
Help on Optical Data: Optical Data: Uniaxial (-), e=2.535, w=2.665, bire=0.1300.
 

Calculated Properties of Litharge

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=7.52 gm/cc
note: Specific Gravity of Litharge =9.33 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.2
Boson Index = 0.8
Help on Photoelectric: Photoelectric: PELitharge =1,767.06 barns/electron
U=PELitharge x rElectron Density=13295.73 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Litharge is Not Radioactive
 

Litharge Classification
Help on Dana Class: Dana Class: 04.02.04.01 (04)Simple Oxides
  (04.02)with a cation charge of 2+ (A++ O)
  (04.02.04)Dana Group
 
04.02.04.01 Litharge PbO P 4/nmm 4/m 2/m 2/m
Help on Strunz Class: Strunz Class: 04.AC.20 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
  04.A - Metal:Oxygen = 2.1 and 1:1
  04.AC -M:O = 1:1 (and up to 1:1.25); with large cations (± smaller ones)
 
04.AC.20 Litharge PbO P 4/nmm 4/m 2/m 2/m
 
04.AC.20 Romarchite SnO P 4/nmm 4/m 2/m 2/m
 

Other Litharge 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 Litharge :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (MinSocAm)
8 - Handbook of Mineralogy (UofA)
9 - MinDAT
10 - MinMax(Deutsch)
11 - MinMax(English)
12 - Mineralienatlas (Deutsch)
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - Scandinavian mineral gallery
16 - WWW-MINCRYST

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Litharge

PbO
Dana No: 04.02.04.01 Strunz No: 04.AC.20
Locality:

 

Notes: