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Polkovicite Mineral Data
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General Polkovicite Information
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 Chemical Formula: |
(Fe,Pb)3(Ge,Fe)1-xS4 |
| Composition: |
Molecular Weight = 470.48 gm |
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Iron 29.68 % Fe |
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Germanium 10.03 % Ge |
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Lead 33.03 % Pb |
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Sulfur 27.26 % S |
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______ |
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100.00 % |
| Empirical Formula: |
Fe2+2.25Pb0.75Ge0.65Fe2+0.25S4 |
| Environment: |
Epigenetic veinlets and metasomatic replacement zones replacing sandstone and older sulfides. Forms a series with morozeviczite. |
| IMA Status: |
Approved IMA 1979 |
| Locality: |
Polkovice mine, Lower Silesia, Poland. Link to MinDat.org Location Data. |
| Name Origin: |
Named for the locality. |
| Name Pronunciation: |
Polkovicite + Pronunciation  |
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Polkovicite Crystallography
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| Cell Dimensions: |
a = 10.61, Z = 8; V = 1,194.39 Den(Calc)= 5.23 |
| Crystal System: |
Isometric - Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: F d3m |
| X Ray Diffraction: |
By Intensity(I/Io): 3.08(1), 2.15(0.9), 2.8(0.6), |
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Physical Properties of Polkovicite
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| Cleavage: |
None |
| Color: |
Brownish gray. |
| Density: |
6.62 |
| Diaphaneity: |
Opaque |
| Hardness: |
3.5 - Copper Penny |
| Luster: |
Metallic |
| Streak: |
dark gray |
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Calculated Properties of Polkovicite
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| Electron Density: |
Bulk Density (Electron Density)=4.70 gm/cc
note: Specific Gravity of Polkovicite =5.23 gm/cc.
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| Fermion Index: |
Fermion Index = 0.08
Boson Index = 0.92 |
| Photoelectric: |
PEPolkovicite = 582.11 barns/electron
U=PEPolkovicite x rElectron Density=2,734.62 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Polkovicite is Not Radioactive |
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Polkovicite Classification
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| Dana Class: |
02.09.05.02 (02)Sulfides - Including Selenides and Tellurides |
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(02.09)where Am Bn Xp, with (m+n):p=1:1 |
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(02.09.05)Dana Group |
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02.09.05.01 Morozeviczite (Pb,Fe)3Ge1-xS4 F d3m 4/m 3 2/m |
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02.09.05.02 Polkovicite (Fe,Pb)3(Ge,Fe)1-xS4 F d3m 4/m 3 2/m |
| Strunz Class: |
02.CB.35a 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf |
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02.C - Metal Sulfides, M:S = 1:1 (and similar) |
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02.CB -With Zn, Fe, Cu, Ag, Au, etc |
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02.CB.35a Hemusite Cu6SnMoS8 Unk Cubic |
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02.CB.35a Kiddcreekite Cu6SnWS8 Unk Cubic |
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02.CB.35a Renierite (Cu,Zn)11(Ge,As)2Fe4S16 P 42c- 4 2m |
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02.CB.35a Polkovicite (Fe,Pb)3(Ge,Fe)1-xS4 F d3m 4/m 3 2/m |
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02.CB.35a Morozeviczite (Pb,Fe)3Ge1-xS4 F d3m 4/m 3 2/m |
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02.CB.35a Catamarcaite! Cu6GeWS8 P 63mc 6/m 2/m 2/m |
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02.CB.35a Vinciennite Cu10Fe4Sn(As,Sb)S16 P 4122 4 2 2 |
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Other Polkovicite Information
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| References: |
NAME( AntBidBlaNic1) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) |
| 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 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - MinDAT
10 - Mineralienatlas (Deutsch)
11 - Online Mineral Museum
12 - QUT Mineral Atlas
13 - Ruff.Info
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Print or Cut-and-Paste your Polkovicite Specimen Label here :
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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:
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