Polkovicite Mineral Data

Polkovicite Mineral Data
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General Polkovicite Information

Help on Chemical Formula: Chemical Formula: (Fe,Pb)3(Ge,Fe)1-xS4
Help on Composition: Composition: Molecular Weight = 470.48 gm
   Iron       29.68 %  Fe
   Germanium  10.03 %  Ge
   Lead       33.03 %  Pb
   Sulfur     27.26 %  S
             ______ 
             100.00 % 
Help on Empirical Formula: Empirical Formula: Fe2+2.25Pb0.75Ge0.65Fe2+0.25S4
Help on Environment: Environment: Epigenetic veinlets and metasomatic replacement zones replacing sandstone and older sulfides. Forms a series with morozeviczite.
Help on IMA Status: IMA Status: Approved IMA 1979
Help on Locality: Locality: Polkovice mine, Lower Silesia, Poland. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Name Pronunciation: Name Pronunciation: Polkovicite + Pronunciation Say POLKOVICITE
 

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Polkovicite Crystallography
Help on Cell Dimensions: Cell Dimensions: a = 10.61, Z = 8; V = 1,194.39 Den(Calc)= 5.23
Help on Crystal System: Crystal System: Isometric - HexoctahedralH-M Symbol (4/m 3 2/m) Space Group: F d3m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.08(1), 2.15(0.9), 2.8(0.6),
 

Physical Properties of Polkovicite

Help on Cleavage: Cleavage: None
Help on Color: Color: Brownish gray.
Help on Density: Density: 6.62
Help on Diaphaneity: Diaphaneity: Opaque
Help on Hardness: Hardness: 3.5 - Copper Penny
Help on Luster: Luster: Metallic
Help on Streak: Streak: dark gray
 

Calculated Properties of Polkovicite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.70 gm/cc
note: Specific Gravity of Polkovicite =5.23 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.08
Boson Index = 0.92
Help on Photoelectric: Photoelectric: PEPolkovicite = 582.11 barns/electron
U=PEPolkovicite x rElectron Density=2,734.62 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Polkovicite is Not Radioactive
 

Polkovicite Classification
Help on Dana Class: Dana Class: 02.09.05.02 (02)Sulfides - Including Selenides and Tellurides
  (02.09)where Am Bn Xp, with (m+n):p=1:1
  (02.09.05)Dana Group
 
02.09.05.01 Morozeviczite (Pb,Fe)3Ge1-xS4 F d3m 4/m 3 2/m
 
02.09.05.02 Polkovicite (Fe,Pb)3(Ge,Fe)1-xS4 F d3m 4/m 3 2/m
Help on Strunz Class: Strunz Class: 02.CB.35a 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf
  02.C - Metal Sulfides, M:S = 1:1 (and similar)
  02.CB -With Zn, Fe, Cu, Ag, Au, etc
 
02.CB.35a Hemusite Cu6SnMoS8 Unk Cubic
 
02.CB.35a Kiddcreekite Cu6SnWS8 Unk Cubic
 
02.CB.35a Renierite (Cu,Zn)11(Ge,As)2Fe4S16 P 42c- 4 2m
 
02.CB.35a Polkovicite (Fe,Pb)3(Ge,Fe)1-xS4 F d3m 4/m 3 2/m
 
02.CB.35a Morozeviczite (Pb,Fe)3Ge1-xS4 F d3m 4/m 3 2/m
 
02.CB.35a Catamarcaite! Cu6GeWS8 P 63mc 6/m 2/m 2/m
 
02.CB.35a Vinciennite Cu10Fe4Sn(As,Sb)S16 P 4122 4 2 2
 

Other Polkovicite Information
Help on References: References: NAME( AntBidBlaNic1) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Polkovicite :
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 - MinDAT
9 - MinMax(Deutsch)
10 - MinMax(English)
11 - Mineralienatlas (Deutsch)
12 - QUT Mineral Atlas
13 - Ruff.Info

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Polkovicite

(Fe,Pb)3(Ge,Fe)1-xS4
Dana No: 02.09.05.02 Strunz No: 02.CB.35a
Locality:

 

Notes: