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Thalfenisite (Thalfenisit)

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Thalfenisit, Djerfisherit, Hibbingit, Mooihoekit, Cubanit, Mackinawit, Valleriit etc.
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Thalfenisit, Djerfisherit, Hibbingit, Mooihoekit, Cubanit, Mackinawit, Valleriit etc.
Erzschliff mit Thalfenisit, Djerfisherit, Hibbingit, Mooihoekit, Cubanit, Mackinawit, Valleriit etc. aus Talnakh, Norilsk, Russland. Analyse von N. Rudashevsky, Sankt Petersburg.
Copyright: Klaus Schäfer; Contribution: Klaus Schäfer
Collection: Klaus Schäfer, Collection number: Erz-Thal-2-1-7 00
Location: Russland/Sibirien, Föderationskreis/Krasnojarsk, Region (Krasnojarski krai)/Taimyrhalbinsel (Tajmyr)/Putoran-Plateau/Noril'sk/Talnakh
Mineral: Djerfisherite, Hibbingite, Mooihoekite, Thalfenisite
Image: 1580841575
License: Usage for Mineralienatlas project only
Thalfenisit, Djerfisherit, Hibbingit, Mooihoekit, Cubanit, Mackinawit, Valleriit etc. (SNr: Erz-Thal-2-1-7 00)

Erzschliff mit Thalfenisit, Djerfisherit, Hibbingit, Mooihoekit, Cubanit, Mackinawit, Valleriit etc. aus Talnakh, Norilsk, Russland. Analyse von N. Rudashevsky, Sankt Petersburg.
Collection: Klaus Schäfer
Copyright: Klaus Schäfer
Contribution: Klaus Schäfer 2020-02-04
Locality: Talnakh / Noril'sk / Putoran-Plateau / Taimyrhalbinsel (Tajmyr) / Krasnojarsk, Region (Krasnojarski krai) / Sibirien, Föderationskreis / Russland

Collectors Summary

Color grünlichbraun-met.
Hardness (Mohs) 2.50 - 3.00
Solubility +++ konz. HNO3, - verdünnte HNO3, HCl
Crystal System kubisch,

Chemism

Chemical formula

(Tl,K)6(Fe,Ni,Cu)25S26Cl

Chemical composition

Chlor, Eisen, Kupfer, Nickel, Thallium, Kalium, Schwefel

Unit weight: 3284.273005 u; Number of atoms in the formula: 58

Info

Empirical formula:

(Tl0.75K0.25)6(Fe0.6Ni0.3Cu0.1)25S26Cl

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Sulfur

S

25.38

26

44.83

32.0655000

833.7030000
Chlorine

Cl

1.08

1

1.72

35.4532000

35.4532000
Potassium

K

1.79

1.5

2.59

39.0983100

58.6474650
Iron

Fe

25.51

15

25.86

55.8452000

837.6780000
Nickel

Ni

13.40

7.5

12.93

58.6934200

440.2006500
Copper

Cu

4.84

2.5

4.31

63.5463000

158.8657500
Thallium

Tl

28.00

4.5

7.76

204.3833200

919.7249400

Analysis wt%

Ø Tl : 33.40, Fe : 29.40, Ni : 10.30, Cu : 1.74, S : 28.40, Cl : 0.84 (Ref: Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva, 1904-1974 79)

Strunz 9th edition incl. updates

2.FC.05

2: Sulfide und Sulfosalze (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide, Sulfarsenite, Sulfantimonite, Sulfbismuthite)
F: Sulfide, Arsenide, Alkaide; Sulfide mit Halogeniden, Oxiden, Hydroxiden (H2O)
C: mit Cl, Br, I (Halide-Sulfide)
05:Djerfisherit-Bartonit-Gruppe

Lapis Classification

II/F.06-020

II: SULFIDE UND SULFOSALZE (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide)
F: Sulfide mit nichtmetallischem Charakter
6: Alkalisulfide

Classification by Hölzel

2.KB.260

2: SULFIDES
K: Nonmetallic Sulfides, HalideSulfides, etc.
B: With Cl,(Br,I)
2: Djerfisherite-Bartonite-Group

Dana 8th edition

02.15.02.02

02: Sulfide Minerals
15: Sulfides - Including Selenides and Tellurides (Chlorides)
02: Djerfisherite Group

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Djerfisherite group

Optical Properties

Color

grünlichbraun-met.

Crystallography

Crystal System

kubisch

Cell parameters a (Å)

10.29

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

1

Volumne (ų)

1089.547

X-Ray Powder Diffraction

4.16(50),
3.42(90),
3.24(70),
2.96(100),
2.35(60),
2.09(30),
1.965(40),
1.810(70)
XRD chart Thalfenisite

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

Physical Properties

Hardness (Mohs)

2.50 - 3.00

VHN (Hardness Vickers)

147 (10g)

Density (g/cm³)

5.26 (berechnet)

5.005 ( ρ calc. Mineralienatlas )

Instability

+++ konz. HNO3, - verdünnte HNO3, HCl

(Co-)Type locality

(Co-)Type locality

Russland/Sibirien, Föderationskreis/Krasnojarsk, Region (Krasnojarski krai)/Taimyrhalbinsel (Tajmyr)/Putoran-Plateau/Noril'sk/Talnakh/Oktyabr'skoye Mine (Oktyabr'sky, Oktyabr'skoe)

Preface

Author (Name, Year)

Rudashevsky & Karpenkov & Shipova & Shishkin & Ryabikin, 1979

References

Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva 108 (1979), 696

IMA group assignments

Other languages

Spanish

Talfenisita

German

Thalfenisit

English

Thalfenisite

French

Thalfenisite

Russian

Талфенисит

Simplified Chinese

硫镍铁铊矿

Alternative Name

Spanish

Thalfenisita

CNMNC (IMA)-Number

IMA 1979-018

CNMNC symbol

Symbol

Tfn

Locations with GPS information