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Eskebornite

Pictures (2 Images total)

Eskebornit
Views (File:
1467202710
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Eskebornit
von der Mina El Dragon bei Potosi in Bolivien; derbe broncefarbene Kruste; BB = 2,3 mm
Copyright: Peter Köhlen; Contribution: Münchener Micromounter
Collection: Lithothek der Münchener Micromounter, Collection number: A000490, Donator: Klaus Fleck
Location: Bolivien/Potosí, Departamento/Antonio Quijarro, Provinz/El Dragón Mine
Mineral: Eskebornite
Image: 1467202710
License: Usage for Mineralienatlas project only
Eskebornit (SNr: A000490)

von der Mina El Dragon bei Potosi in Bolivien; derbe broncefarbene Kruste; BB = 2,3 mm

Collection: Lithothek der Münchener Micromounter
Copyright: Peter Köhlen
Contribution: Münchener Micromounter 2016-06-29
Locality: El Dragón Mine / Antonio Quijarro, Provinz / Potosí, Departamento / Bolivien
Hansblockit, Eskebornit
Views (File:
1479807587
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Hansblockit, Eskebornit
Hansblockit, Eskebornit, Clausthalit, Klockmannit, Eldragónit, Krut'ait, Petrovicit von der El Dragón Mine in Bolivien. Polierter Anschliff im Auflicht-Hellfeld-Mikroskop; Bildbreite 0,2 mm; An den hier gezeigten Hansblockit-Kristallen wurde die Kristallstruktur bestimmt.
Copyright: Günter Grundmann; Contribution: Günter Grundmann
Collection: Natural History Museum, London, Collection number: BM 2015, 136, Donator: Günter Grundmann
Location: Bolivien/Potosí, Departamento/Antonio Quijarro, Provinz/El Dragón Mine
Mineral: Eskebornite, Hansblockite, Petrovicite
Image: 1479807587
License: Usage for Mineralienatlas project only
Hansblockit, Eskebornit (SNr: BM 2015, 136)

Hansblockit, Eskebornit, Clausthalit, Klockmannit, Eldragónit, Krut'ait, Petrovicit von der El Dragón Mine in Bolivien. Polierter Anschliff im Auflicht-Hellfeld-Mikroskop; Bildbreite 0,2 mm; An den...

Collection: Natural History Museum, London
Copyright: Günter Grundmann
Contribution: Günter Grundmann 2016-11-22
Locality: El Dragón Mine / Antonio Quijarro, Provinz / Potosí, Departamento / Bolivien

You find additional specimen at the Geolitho Museum

Collectors Summary

Color braun-gelb oder cremfarben-gelb, manchmal mit einem orangen Farbton
Streak color schwarz
Hardness (Mohs) 3 - 3.5
Crystal System tetragonal, P42c

Chemism

Chemical formula

CuFeSe2

Chemical composition

Eisen, Kupfer, Selen

Unit weight: 277.3175 u; Number of atoms in the formula: 4

Info

Empirical formula:

CuFeSe2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Iron

Fe

20.14

1

25.00

55.8452000

55.8452000

Copper

Cu

22.91

1

25.00

63.5463000

63.5463000

Selenium

Se

56.95

2

50.00

78.9630000

157.9260000

Analysis wt%

Ø Cu : 23.62, Fe : 19.75, Se : 55.96 (Ref: Canadian Mineralogist 71)

Strunz 9th edition incl. updates

2.CB.10

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.
10:Chalkopyrit-Gruppe

Lapis Classification

II/C.03-020

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

Classification by Hölzel

2.CB.210

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
2: Chalcopyrite-Group

Dana 8th edition

02.09.01.02

02: Sulfide Minerals
09: Sulfides - Including Selenides and Tellurides where Am Bn Xp, with (m+n):p=1:1
01: Chalcopyrite Group (Tetragonal: I-42d)

IMA status

anerkannt, pre IMA, vererbt

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

Chalcopyrite group

Optical Properties

Color

braun-gelb oder cremfarben-gelb, manchmal mit einem orangen Farbton

Streak color

schwarz

Diaphaneity (Transparency)

opak

Crystallography

Crystal System

tetragonal

Class (H-M)

42m

Space Group number

112

Space Group

P42c

Cell parameters a (Å)

5.518

Cell parameters b (Å)

-

Cell parameters c (Å)

11.048

Cell parameters a/b or c/a

2.002

Cell parameters c/b

-

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

4

Volume (ų)

336.393

X-Ray Powder Diffraction

5.53(80),
3.17(100),
2.459(80),
1.945(90),
1.662(80),
1.380(70),
1.266(70),
1.126(70)

XRD chart Eskebornite

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

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

3 - 3.5

VHN (Hardness Vickers)

147 (50g)

Density (g/cm³)

5.35

5.475 ( ρ calc. Mineralienatlas )

Preface

Name from

Typlokalität (Eskaborner Stolln)

Author (Name, Year)

Ramdohr, 1949

References

Strunz Mineralogical Tables 9. Edition

American Mineralogist (1972): 57: 1560.

American Mineralogist (1989): 74: 1403.

Delgado, J.M., Diaz De Delgado, G., Quintero, M., and Wooley, J.C. (1992) The crystal structure of copper iron selenide, CuFeSe2. Mater. Research Bulletin: 27(3): 367-373.

IMA group assignments

Other languages

German

Eskebornit

Spanish

Eskebornita

English

Eskebornite

French

Eskebornite

Russian

Эскеборнит

CNMNC symbol

Symbol

Ebn

Locations with GPS information

IDs

GUSID (Global unique identifier short form) zZou_XQZKU6_RJBO6dQkqg
GUID (Global unique identifier) FD2E9ACD-1974-4E29-BF44-904EE9D424AA
Database ID 1060