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Polkovicite

Formula:
(Fe,Pb)
 
3
(Ge,Fe)
 
1-x
S
 
4
System:IsometricColour:Brownish gray
Hardness:3½


Forms a series with Morozeviczite.

Classification of Polkovicite

IMA status:Approved
Strunz 8th edition ID:2/C.10-70
Nickel-Strunz 10th (pending) edition ID:2.CB.35

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
C : Metal Sulfides, M: S = 1: 1 (and similar)
B : With Zn, Fe, Cu, Ag, etc.
Dana 8th edition ID:2.9.5.2

2 : SULFIDES
9 : AmBnXp, with (m+n):p = 1:1
Hey's CIM Ref.:6.2.7

6 : Sulphosalts - Sulphostannates, Sulphogermanates,Sulpharsenates, Sulphantimonates, Sulphovanadates and Sulphohalides
2 : Sulphogermanates
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Type Occurrence of Polkovicite

Type Locality:Polkowice Mine, Polkowice District, Legnica, Lower Silesia (Dolnośląskie), Poland
Year of Discovery:1975

Physical Properties of Polkovicite

Lustre:Metallic
Diaphaneity (Transparency):Opaque
Colour:Brownish gray
Hardness (Mohs):3½

Crystallography of Polkovicite

Crystal System:Isometric
Cell Parameters:a = 10.61Å
Unit Cell Volume:V 1,194.39 ų (Calculated from Unit Cell)

Optical Data of Polkovicite

Type:Isotropic

Chemical Properties of Polkovicite

Formula:
(Fe,Pb)
 
3
(Ge,Fe)
 
1-x
S
 
4
Essential elements:Fe, Ge, S
All elements listed in formula:Fe, Ge, Pb, S
Common Impurities:Cu,As

Relationship of Polkovicite to other Species

Series:Forms a series with Morozeviczite (see here)
Related Minerals - Nickel-Strunz Grouping):
2.CB.05Coloradoite
HgTe
2.CB.05Hawleyite
CdS
2.CB.05Metacinnabar
HgS
2.CB.05Polhemusite
(Zn,Hg)S
2.CB.05Sakuraiite
(Cu,Zn,Fe)
 
3
(In,Sn)S
 
4
2.CB.05Sphalerite
(Zn,Fe
2+
 
)S
2.CB.05Stilleite
ZnSe
2.CB.05Tiemannite
HgSe
2.CB.05Rudashevskyite
(Fe,Zn)S
2.CB.10Chalcopyrite
CuFeS
 
2
2.CB.10Eskebornite
CuFeSe
 
2
2.CB.10Gallite
CuGaS
 
2
2.CB.10Haycockite
Cu
 
4
Fe
 
5
S
 
8
2.CB.10Lenaite
AgFeS
 
2
2.CB.10Mooihoekite
Cu
 
9
Fe
 
9
S
 
16
2.CB.10Putoranite
Cu
 
9
Fe
 
9
S
 
16
2.CB.10Roquesite
CuInS
 
2
2.CB.10Talnakhite
Cu
 
9
(Fe,Ni)
 
8
S
 
16
2.CB.10Laforêtite
AgInS
 
2
2.CB.15Černýite
Cu
 
2
(Cd,Zn,Fe)SnS
 
4
2.CB.15Ferrokësterite
Cu
 
2
(Fe,Zn)SnS
 
4
2.CB.15Hocartite
Ag
 
2
(Fe
2+
 
,Zn)SnS
 
4
2.CB.15Idaite
Cu
 
5
FeS
 
6
2.CB.15Kësterite
Cu
 
2
(Zn,Fe)SnS
 
4
2.CB.15Kuramite
Cu
 
3
SnS
 
4
2.CB.15Mohite
Cu
 
2
SnS
 
3
2.CB.15Pirquitasite
Ag
 
2
ZnSnS
 
4
2.CB.15Stannite
Cu
 
2
(Fe,Zn)SnS
 
4
2.CB.15Stannoidite
Cu
+
6
Cu
2+
2
(Fe
2+
 
,Zn)
 
3
Sn
 
2
S
 
12
2.CB.15Velikite
(Cu,Hg)
 
11
Sn
 
4
S
 
16
2.CB.20Chatkalite
Cu
 
6
FeSn
 
2
S
 
8
2.CB.20Mawsonite
Cu
 
6
Fe
 
2
SnS
 
8
2.CB.30Colusite
Cu
 
26
V
 
2
(As,Sn,Sb)
 
6
S
 
32
2.CB.30Germanite
Cu
 
13
Fe
 
2
Ge
 
2
S
 
16
2.CB.30Germanocolusite
Cu
 
26
V
 
2
(Ge,As)
 
6
S
 
32
2.CB.30Nekrasovite
Cu
 
26
V
 
2
(Sn,As,Sb)
 
6
S
 
32
2.CB.30Stibiocolusite
Cu
 
13
V
 
4
(Sb,Sn,As)
 
3
S
 
16
2.CB.30Ovamboite
Cu
 
20
(Fe,Cu,Zn)
 
6
W
 
2
Ge
 
6
S
 
32
2.CB.30Maikainite
Cu
 
20
(Fe,Cu)
 
6
Mo
 
2
Ge
 
6
S
 
32
2.CB.35Hemusite
Cu
 
6
SnMoS
 
8
2.CB.35Kiddcreekite
Cu
 
6
SnWS
 
8
2.CB.35Renierite
(Cu,Zn)
 
11
(Ge,As)
 
2
Fe
 
4
S
 
16
2.CB.35Vinciennite
Cu
+
7
Cu
2+
3
Fe
2+
2
Fe
3+
2
Sn(As,Sb)S
 
16
2.CB.35Morozeviczite
(Pb,Fe)
 
3
Ge
 
1-x
S
 
4
2.CB.35Catamarcaite
Cu
 
6
GeWS
 
8
2.CB.40Lautite
CuAsS
2.CB.45Cadmoselite
CdSe
2.CB.45Greenockite
CdS
2.CB.45Hypercinnabar
HgS
2.CB.45Wurtzite
(Zn,Fe)S
2.CB.45Rambergite
MnS
2.CB.55Cubanite
CuFe
 
2
S
 
3
2.CB.55Isocubanite
CuFe
 
2
S
 
3
2.CB.60Picotpaulite
TlFe
 
2
S
 
3
2.CB.60Raguinite
TlFeS
 
2
2.CB.65Argentopyrite
AgFe
 
2
S
 
3
2.CB.65Sternbergite
AgFe
 
2
S
 
3
2.CB.70Sulvanite
Cu
 
3
VS
 
4
2.CB.75Vulcanite
CuTe
2.CB.80Empressite
AgTe
2.CB.85Muthmannite
(Ag,Au)Te
Related Minerals - Hey's Index Grouping:
6.2.1Germanite
Cu
 
13
Fe
 
2
Ge
 
2
S
 
16
6.2.2Briartite
Cu
 
2
(Fe,Zn)GeS
 
4
6.2.3Renierite
(Cu,Zn)
 
11
(Ge,As)
 
2
Fe
 
4
S
 
16
6.2.4Argyrodite
Ag
 
8
GeS
 
6
6.2.5Canfieldite
Ag
 
8
(Sn,Ge)(S,Te)
 
6
6.2.6Morozeviczite
(Pb,Fe)
 
3
Ge
 
1-x
S
 
4

Other Names for Polkovicite

Synonyms:
IMA1974-037
German names:
Polkovicit
Spanish names:
Polkovicita

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Polkovicite

Reference List:American Minweralogist (1981): 66: 437-438.

Internet Links for Polkovicite

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    Localities for Polkovicite

    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Poland
     
    • Lower Silesia (Dolnośląskie)
      • Legnica
        • Polkowice District
    		American Mineralogist, volume 66, pp. 437-438 (1981); Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 1, 1990
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