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Chaméanite

Collectors Summary

Color grauschwarz-met.
Hardness (Mohs) 4.00 - 4.50
Crystal System kubisch,

Additional information / Summary

Möglicherweise identisch mit Mgriit

Moëlo, Y. et al. (2008) Sulfosalt systematics: a review. Report of the sulfosalt sub-committee of the IMA Commission on Ore Mineralogy. Eur. J. Mineral., 20, 7-46.

Chemism

Chemical formula

(Cu,Fe)4As(Se,S)4

Chemical composition

Arsen, Eisen, Kupfer, Selen, Schwefel

Unit weight: 590.360202 u; Number of atoms in the formula: 9

Info

Empirical formula:

(Cu0.75Fe0.25)4As(Se0.75S0.25)4

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Sulfur

S

5.43

1

11.11

32.0655000

32.0655000
Iron

Fe

9.46

1

11.11

55.8452000

55.8452000
Copper

Cu

32.29

3

33.33

63.5463000

190.6389000
Arsenic

As

12.69

1

11.11

74.9216020

74.9216020
Selenium

Se

40.13

3

33.33

78.9630000

236.8890000

Analysis wt%

Cu : 35.46, Fe : 4.13, As : 11.03, Sb : 0.49, Se : 47.08, S : 1.49 (Ref: Tschermaks Mineralogische und Petrographische Mitteilungen 82)

Strunz 9th edition incl. updates

2.LA.35

2: Sulfide und Sulfosalze (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide, Sulfoarsenide, Sulfoantimonide, Sulfobismuthide)
L: unklassifizierte Sulfosalze
A: ohne nennenswertes Pb (Blei)
35:Chaméanit-Gruppe

Lapis Classification

II/C.11-080

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

Classification by Hölzel

2.CB.590

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
5: Germanite-Colusite-Mawsonite-Group

Dana 8th edition

03.02.08.01

03: Sulfides - Sulfosalts
02: Sulfides - Sulfosalts where z/y = 4 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

grauschwarz-met.

Crystallography

Crystal System

kubisch

Cell parameters a (Å)

11.039

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

8

Volume (ų)

1345.207

X-Ray Powder Diffraction

3.187(100),
1.951(90),
1.665(80),
1.381(40),
1.266(60),
1.127(70),
1.062(50),
0.975(30)
XRD chart Chaméanite

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

Physical Properties

Hardness (Mohs)

4.00 - 4.50

VHN (Hardness Vickers)

265 (25g)

Density (g/cm³)

6.17 (berechnet)

5.83 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

Frankreich/Auvergne-Rhône-Alpes, Region/Puy-de-Dôme, Département/Issoire, Arrondissement/Chaméane/Uranlagerstätte

Preface

Author (Name, Year)

Johan & Picot & Ruhlmann, 1982

References

Tschermaks Mineralogische und Petrographische Mitteilungen 29 (1982), 151

Other languages

German

Chaméanit

Spanish

Chaméanita

French

Chaméanite

English

Chaméanite

Japanese

ﾁｬﾒｱﾅｲﾄ

CNMNC symbol

Symbol

Céa

Locations with GPS information

IDs

GUSID (Global unique identifier short form) jU-VJkL6AUeqWXQlYb1MRA
GUID (Global unique identifier) 26954F8D-FA42-4701-AA59-742561BD4C44
Database ID 683