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Argentopentlandite

Pictures (1 Images total)

Argentopentlandit, Froodit, Moncheit, Altait, Hessit, Silber, Cubanit
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Argentopentlandit, Froodit, Moncheit, Altait, Hessit, Silber, Cubanit
Erzschliff mit Argentopentlandit, Froodit, Moncheit, Altait, Hessit, Silber, Cubanit etc. aus Oktyabr'skoye, Norilsk , Sibirien, Russland. Analyse von Prof. N. Rudashevsky, Sankt Petersburg.
Copyright: Klaus Schäfer; Contribution: Klaus Schäfer
Collection: Klaus Schäfer, Collection number: Erz-Argp-2-1-3
Location: Russland/Sibirien, Föderationskreis/Krasnojarsk, Region (Krasnojarski krai)/Taimyrhalbinsel (Tajmyr)/Putoran-Plateau/Noril'sk/Talnakh/Oktyabr'skoye Mine (Oktyabr'sky, Oktyabr'skoe)
Mineral: Altaite, Argentopentlandite, Froodite, Hessite, Moncheite
Image: 1581578633
License: Usage for Mineralienatlas project only
Argentopentlandit, Froodit, Moncheit, Altait, Hessit, Silber, Cubanit (SNr: Erz-Argp-2-1-3)

Erzschliff mit Argentopentlandit, Froodit, Moncheit, Altait, Hessit, Silber, Cubanit etc. aus Oktyabr'skoye, Norilsk , Sibirien, Russland. Analyse von Prof. N. Rudashevsky, Sankt Petersburg.

Collection: Klaus Schäfer
Copyright: Klaus Schäfer
Contribution: Klaus Schäfer 2020-02-13
Locality: Oktyabr'skoye Mine (Oktyabr'sky, Oktyabr'skoe) / Talnakh / Noril'sk / Putoran-Plateau / Taimyrhalbinsel (Tajmyr) / Krasnojarsk, Region (Krasnojarski krai) / Sibirien, Föderationskreis / Russland

Collectors Summary

Color Cinnamon-braun
Streak color rötlichbraun
Hardness (Mohs) 3.5
Crystal System kubisch, Fm3m
Morphology kubisch

Chemism

Chemical formula

Ag(Fe,Ni)8S8

Chemical composition

Eisen, Nickel, Silber, Schwefel

Unit weight: 816.85026 u; Number of atoms in the formula: 17

Info

Empirical formula:

Ag(Fe0.75Ni0.25)8S8

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Sulfur

S

31.40

8

47.06

32.0655000

256.5240000

Iron

Fe

41.02

6

35.29

55.8452000

335.0712000

Nickel

Ni

14.37

2

11.76

58.6934200

117.3868400

Silver

Ag

13.21

1

5.88

107.8682200

107.8682200

Analysis wt%

Ø Ag : 13.30, Ni : 21.30, Fe : 34.70, S : 31.40 (Ref: Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva, 1904-1974 77)

Strunz 9th edition incl. updates

2.BB.15

2: Sulfide und Sulfosalze (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide, Sulfarsenite, Sulfantimonite, Sulfbismuthite)
B: Metallsulfide, M : S > 1 : 1 (hauptsächlich 2 : 1)
B: mit Nickel (Ni)
15:Pentlandit-Gruppe

Lapis Classification

II/B.16-030

II: SULFIDE UND SULFOSALZE (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide)
B: Sulfide, Selenide und Telluride mit Verhältnis Metall : S,Se,Te > 1:1
16: Sulfide mit vorherrschend Nickel, Kobalt, Rhodium und Palladium; Pentlandit-Gruppe

Classification by Hölzel

2.BB.340

2: SULFIDES
B: Sulfides (etc) with Me/S > 1/1 (mostly 2/1)
B: With Ni,Fe,Co,Cu
3: Pentlandite-Group

Dana 8th edition

02.07.01.02

02: Sulfide Minerals
07: Sulfides - Including Selenides and Tellurides where Am Bn Xp, with (m+n):p=9:8
01: Pentalndite Group (Isometric: Fm3m)

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

Pentlandite Group

Optical Properties

Color

Cinnamon-braun

Streak color

rötlichbraun

Diaphaneity (Transparency)

opak

Crystallography

Crystal System

kubisch

Class (H-M)

m3m

Space Group number

225

Space Group

Fm3m

Cell parameters a (Å)

10.521

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

4

Volumne (ų)

1164.585

X-Ray Powder Diffraction

6.13(10),
5.27(10),
3.72(10),
3.171(100),
3.035(50),
2.025(30),
1.861(80),
1.073(20)

XRD chart Argentopentlandite

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

Morphology

kubisch

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

3.5

VHN (Hardness Vickers)

164 (100g)

Density (g/cm³)

4.69 (berechnet)

4.659 ( ρ calc. Mineralienatlas )

Preface

Author (Name, Year)

Rudashevsky & Mitenkov & Karpenkov & Shishkin, 1977

References

Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva 106 (1977), 688

IMA group assignments

Other languages

German

Argentopentlandit

Spanish

Argentopentlandita

French

Argentopentlandite

English

Argentopentlandite

Russian

Аргентопентландит

Simplified Chinese

银镍黄铁矿

CNMNC (IMA)-Number

IMA 1970-047

CNMNC symbol

Symbol

Apn

Locations with GPS information