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Polkovicite

Collectors Summary

Color bräunlich grau
Streak color dunkelgrau
Lustre Metallglanz
Hardness (Mohs) 3.5
Crystal System kubisch,

Chemism

Chemical formula

(Fe,Pb)3(Ge,Fe)1-xS4

Additional chem. information

bildet Mischkristalle mit Morozeviczit

Chemical composition

Blei, Eisen, Germanium, Schwefel

Strunz 9th edition incl. updates

2.CB.35

2: Sulfide und Sulfosalze (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide, Sulfoarsenide, Sulfoantimonide, Sulfobismuthide)
C: Metallsulfide, M : S = 1 : 1 (und ähnliche)
B: mit Zink (Zn), Eisen (Fe), Kupfer (Cu), Silber (Ag), usw.
35:Hemusit-Gruppe

Lapis Classification

II/C.10-070

II: SULFIDE UND SULFOSALZE (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide)
C: Sulfide mit Metall : S,Se,Te ~ 1:1

Classification by Hölzel

2.CB.490

2: SULFIDES
C: Sulfides (etc) with Me/S=1/1
B: With Zn,Cu (etc), Coordination Number ~[4] Framework of Cornersharing Tetrahedra: Sphalerite-Germanite-Family
4: Luzonite-Hemusite-Group

Dana 8th edition

02.09.05.02

02: Sulfide Minerals
09: Sulfides - Including Selenides and Tellurides where Am Bn Xp, with (m+n):p=1:1

IMA status

anerkannt

Mineral status

anerkanntes Mineral

Optical Properties

Color

bräunlich grau

Streak color

dunkelgrau

Diaphaneity (Transparency)

opak

Lustre

Metallglanz

Anisotropism

deutlich

Crystallography

Crystal System

kubisch

Cell parameters a (Å)

10.61

Cell parameters b (Å)

-

Cell parameters c (Å)

-

Cell parameters a/b or c/a

1

Cell parameters c/b

-

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

32

Volume (ų)

1194.39

X-Ray Powder Diffraction

3.08(100),
2.80(60),
2.15(90),
2.047(60),
1.791(50),
1.565(50),
1.467(50),
1.109(50)
XRD chart Polkovicite

Calculated from d-spacing and intensity at 0.1541838 nm (Cu)

Physical Properties

Hardness (Mohs)

3.5

VHN (Hardness Vickers)

122 (50g)

Density (g/cm³)

6.62

(Co-)Type locality

(Co-)Type locality

Polen/Niederschlesien (Dolnoslaskie), Woiwodschaft/Polkwitz (Polkowicki), Powiat/Polkwitz (Polkowice)/Polkowice Mine

Polen/Niederschlesien (Dolnoslaskie), Woiwodschaft/Polkwitz (Polkowicki), Powiat/Polkwitz (Polkowice)/Sieroszowice Mine

Preface

Author (Name, Year)

Haranczyk, 1975

References

American Mineralogist (1981): 66: 437-438.

Strunz Mineralogical Tables 9. Edition (2001)

Other languages

Spanish

Policrasa-(Y)

German

Polkovicit

French

Polkovicite

English

Polkovicite

Alternative Name

Polkovicita

CNMNC (IMA)-Number

IMA 1974-037

CNMNC symbol

Symbol

Pk

Locations with GPS information

IDs

GUSID (Global unique identifier short form) c50NAGme6USbO8VuqU53qQ
GUID (Global unique identifier) 000D9D73-9E69-44E9-9B3B-C56EA94E77A9
Database ID 3100