Mineralogy Database

Veenite Mineral Data

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General Veenite Information

Help on Chemical  Formula: Chemical Formula: Pb2(Sb,As)2S5
Help on Composition: Composition: Molecular Weight = 776.08 gm
   Antimony  17.26 %  Sb
   Arsenic    8.69 %  As
   Lead      53.40 %  Pb
   Sulfur    20.66 %  S
            ______ 
            100.00 % 
Help on Empirical Formula: Empirical Formula: Pb2Sb1.1As0.9S5
Help on Environment: Environment: As small masses, stringers, and disseminated grains in marbles developed in a sequence of Precambrian metasediments near a contact with plutonic granitic gneiss.
Help on IMA Status: IMA Status: Approved IMA 1967
Help on Locality: Locality: Madoc, Ontario, Canada. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for R. W. Van der Veen (1883-1925), Dutch economic geologist and metallographer.
Help on Name Pronunciation: Name Pronunciation: Veenite Say VEENITE
Help on Synonym: Synonym: IMA1966-016
 

Veenite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.161:1:0.3015
Help on Cell Dimensions: Cell Dimensions: a = 4.22, b = 26.2, c = 7.9, Z = 4; V = 873.46 Den(Calc)= 5.90
Help on Crystal System: Crystal System: Orthorhombic - Pyramidal H-M Symbol (mm2) Space Group: P 21cn
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.81(1), 3.03(0.9), 3.42(0.8),
 

Physical Properties of Veenite

Help on Cleavage: Cleavage: None
Help on Color: Color: Steel gray.
Help on Density: Density: 5.92
Help on Diaphaneity: Diaphaneity: Opaque
Help on Fracture: Fracture: Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Help on Hardness: Hardness: 3.5-4 - Copper Penny-Fluorite
Help on Luster: Luster: Metallic
Help on Streak: Streak: black
 

Optical Properties of Veenite

Help on RL Anisotrophism: RL Anisotrophism: Weak, white to pale pinkish brown.
Help on RL Color: RL Color: White.
Help on RL Pleochroism: RL Pleochroism: Moderate.
 

Calculated Properties of Veenite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=5.01 gm/cc
note: Specific Gravity of Veenite =5.90 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.11
Boson Index = 0.89
Help on Photoelectric: Photoelectric: PEVeenite =1,032.01 barns/electron
U=PEVeenite x rElectron Density=5,174.96 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Veenite is Not Radioactive
 

Veenite Classification

Help on  Dana Class: Dana Class: 03.05.09.02 (03)Sulfides - Sulfosalts
  (03.05)where 2.5 < z/y < 3 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals
  (03.05.09)Cosalite Group
 
03.05.09.01 Cosalite Pb2Bi2S5 Pbnm 2/m 2/m 2/m
 
03.05.09.02 Veenite Pb2(Sb,As)2S5 P 21cn mm2
 
03.05.09.03 Dufrenoysite Pb2As2S5 P 21/m 2/m
Help on  Strunz Class: Strunz Class: 02.HC.05d 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf
  02.H - Sulfosalts of SnS Archetype
  02.HC -With only Pb
 
02.HC.05d Dufrenoysite Pb2As2S5 P 21/m 2/m
 
02.HC.05d Rathite Pb8Pb4-x(Tl2As2)x(Ag2As2)As16S40 P 21/n 2/m
 
02.HC.05d Veenite Pb2(Sb,As)2S5 P 21cn mm2
 

Other Veenite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(AntBidBlaNic1)
Help on See Also: See Also: Links to other databases for Veenite :
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

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

Veenite

Pb2(Sb,As)2S5
Dana No: 03.05.09.02 Strunz No: 02.HC.05d
Locality:

 

Notes:

 

 
   
 


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