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Haycockite

Pictures (1 Images total)

Haycockit
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Haycockit
schwarze Einschlüsse von Haycockit mit Mooihoekit in Calcit, Duluth Complex, Hibbing, St Louis Co., Minnesota, USA; BB < 1 cm
Copyright: mintreasure.com; Contribution: openpit
Location: USA/Minnesota/St. Louis Co./Hibbing/Duluth Complex
Mineral: Haycockite
Image: 1688310378
License: Usage for Mineralienatlas project only
Haycockit

schwarze Einschlüsse von Haycockit mit Mooihoekit in Calcit, Duluth Complex, Hibbing, St Louis Co., Minnesota, USA; BB < 1 cm

Copyright: mintreasure.com
Contribution: openpit 2023-07-02
Locality: Duluth Complex / Hibbing / St. Louis Co. / Minnesota / USA

Collectors Summary

Color messinggelb-met.
Streak color schwarz
Hardness (Mohs) 4
Crystal System orthorhombisch,

Chemism

Chemical formula

Cu4Fe5S8

Chemical composition

Eisen, Kupfer, Schwefel

Unit weight: 789.9352 u; Number of atoms in the formula: 17

Info

Empirical formula:

Cu4Fe5S8

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Sulfur

S

32.47

8

47.06

32.0655000

256.5240000

Iron

Fe

35.35

5

29.41

55.8452000

279.2260000

Copper

Cu

32.18

4

23.53

63.5463000

254.1852000

Analysis wt%

Cu : 32.16, Fe : 35.03, Ni : 0.40, S : 32.41 (Ref: American Mineralogist 72)

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.04-020

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

Classification by Hölzel

2.CB.500

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

02.09.08.02

02: Sulfide Minerals
09: Sulfides - Including Selenides and Tellurides where Am Bn Xp, with (m+n):p=1:1
08: Talnakhite Group

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

messinggelb-met.

Streak color

schwarz

Crystallography

Crystal System

orthorhombisch

Cell parameters a (Å)

10.705

Cell parameters b (Å)

10.734

Cell parameters c (Å)

31.630

Cell parameters a/b or c/a

0.997

Cell parameters c/b

2.947

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

12

Volume (ų)

3634.523

X-Ray Powder Diffraction

3.077(100),
1.895(10),
1.880(20),
1.878(20),
1.615(10),
1.594(10),
1.092(10),
1.082(10)

XRD chart Haycockite

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

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

4

VHN (Hardness Vickers)

263 (50g)

Density (g/cm³)

4.35

4.331 ( ρ calc. Mineralienatlas )

Preface

Author (Name, Year)

Cabri & Hall, 1972

References

American Mineralogist 57 (1972), 689

Other languages

German

Haycockit

Spanish

Haycockita

English

Haycockite

French

Haycockite

Russian

Хейкоит

Russian

Хейкокит

CNMNC (IMA)-Number

IMA 1971-028

CNMNC symbol

Symbol

Hyc

Locations with GPS information

IDs

GUSID (Global unique identifier short form) NBxhUIs3iUmocAytn-dwBw
GUID (Global unique identifier) 50611C34-378B-4989-A870-0CAD9FE77007
Database ID 1537