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Eskebornite

Pictures (2 Images total)

Eskebornit
Views (Image: 1467202710): 997
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 / Potosi, Departamento / Bolivien
Hansblockit, Eskebornit
Views (Image: 1479807587): 992
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 / Potosi, Departamento / Bolivien

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, Sulfarsenite, Sulfantimonite, Sulfbismuthite)
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

Volumne (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 )

(Co-)Type locality

(Co-)Type locality

Deutschland/Sachsen-Anhalt/Mansfeld-Südharz, Landkreis/Mansfeld, Stadt/Abberode/Tilkerode/Eskebornstollen

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

Automatic Links to external internet sources (Responsibility is with the operator)

German pages

 DeWikiPedia - search for: Eskebornit
Google-Bilder-Suche - search for: Eskebornit
Mineralienatlas.de (Forum) - search for: Eskebornit

English pages

 Mindat - search for: Eskebornite
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Handbook-of-Mineralogy - search for: Eskebornite
RRUFF - Raman, XRD and other mineral data - search for: Eskebornite
RRUFF - References and PDF downloads - search for: Eskebornite
American-Mineralogist-Crystal-Structure-Database - search for: Eskebornite
Strahlen.org - search for: Eskebornite

Russian pages

 Webmineral.ru - search for: Эскеборнит

Mineral Dealer

German pages

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Locations with GPS information