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Harmunite

Pictures (1 Images total)

Harmunit
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Harmunit
Feuerberg, Hohenfels/Eifel; Bildbreite 1,7 mm.
Copyright: Guy Heinen; Contribution: guyhein
Collection: Guy Heinen
Location: Deutschland/Rheinland-Pfalz/Vulkaneifel, Landkreis/Gerolstein, Verbandsgemeinde/Hohenfels-Essingen/Feuerberg
Mineral: Harmunite
Image: 1600800393
License: Usage for Mineralienatlas project only
Harmunit

Feuerberg, Hohenfels/Eifel; Bildbreite 1,7 mm.
Collection: Guy Heinen
Copyright: Guy Heinen
Contribution: guyhein 2020-09-22
Locality: Feuerberg / Hohenfels-Essingen / Gerolstein, Verbandsgemeinde / Vulkaneifel, Landkreis / Rheinland-Pfalz / Deutschland

Collectors Summary

Color schwarz
Streak color braunschwarz
Lustre Metallglanz
Cleavages vollkommen {100}
Crystal System orthorhombisch, Pnma

Chemism

Chemical formula

CaFe2O4

Additional chem. information

Post-Spinel Calcium Ferrit

Chemical composition

Calcium, Eisen, Sauerstoff

Unit weight: 215.76652 u; Number of atoms in the formula: 7

Info

Empirical formula:

CaFe2O4

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Oxygen

O

29.66

4

57.14

15.9994300

63.9977200
Calcium

Ca

18.57

1

14.29

40.0784000

40.0784000
Iron

Fe

51.76

2

28.57

55.8452000

111.6904000

Strunz 9th edition incl. updates

4.CC.

4: Oxide, Hydroxide (Oxide, Hydroxide, V[5,6]-Vanadate, Arsenite, Antimonite, Bismutite, Sulfite, Selenite, Tellurite, Iodate)
C: Metall: Sauerstoff = 2: 3,3: 5, und vergleichbare
C: Mit großen und mittelgroßen Kationen

Lapis Classification

IV/B.05-058

IV: OXIDE
B: Oxide mit Verhältnis Metall zu Sauerstoff = 3:4 (Spinelltyp M3O4 und verwandte Verbindungen)

IMA status

anerkannt - Neue Mineralien Feb. 2013; CNMNC Newsletter No. 15

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Marokite supergroup

Optical Properties

Color

schwarz

Streak color

braunschwarz

Lustre

Metallglanz

Crystallography

Crystal System

orthorhombisch

Class (H-M)

mmm

Space Group number

62

Space Group

Pnma

Cell parameters a (Å)

9.2183

Cell parameters b (Å)

3.0175

Cell parameters c (Å)

10.6934

Cell parameters a/b or c/a

3.055

Cell parameters c/b

3.544

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

4

Volume (ų)

297.45

Crystal structure

Struktur bestimmt

X-Ray Powder Diffraction

2.670(52), 2.663(100), 2.524(60), 2.523(35), 2.232(34), 1.834(40), 1.831(27), 1.510(19)
XRD chart Harmunite

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

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Density (g/cm³)

4.40

4.818 ( ρ calc. Mineralienatlas )

Cleavages

vollkommen {100}

(Co-)Type locality

(Co-)Type locality

Israel/Palästinensisches Autonomiegebiet/West Bank/Judea, Wüste/Jabel Harmun, Berg

Type material

St Petersburg University, Universytetskaya Naberezhnaya 7/9, 199034 St Petersburg, Russland

Collection number of type material

1/19518

Preface

Name from

der Typlokalität

Author (Name, Year)

Irina O. Galuskina, Yevgeny Vapnik, Biljana Lazic, Thomas Armbruster, Mikhail Murashko und Evgeny V. Galuskin (2014)

References

Galuskina, I.O., Vapnik, Y., Lazic, B., Armbruster, T., Murashko, M. and Galuskin, E.V. (2013) Harmunite, IMA 2012-045. CNMNC Newsletter No. 15, February 2013, page 2; Mineralogical Magazine, 77, 112.

Irina O. Galuskina, Yevgeny Vapnik, Biljana Lazic, Thomas Armbruster, Mikhail Murashko, and Evgeny V. Galuskin: Harmunite CaFe2O4: A new mineral from the Jabel Harmun, West Bank, Palestinian Autonomy, Israel. American Mineralogist Vol. 99 (2014) S. 965-975.

Lapis Jg. 39, Nr. 6, Juni 2014, S.48

IMA group assignments

 
Marokite supergroup
 
 
 

 
 
Chenmingite
FeCr2O4
orthorhombisch
Pnma

 
 
Ellinaite
CaCr2O4
orthorhombisch
Pnma

 
 
Harmunite
CaFe2O4
orthorhombisch
Pnma

 
 
Marokite
CaMn23+O4
orthorhombisch
Pmab, P21ab

 
 
Tschaunerite
(Fe2+)(Fe2+Ti4+)O4
orthorhombisch
Cmcm

 
 
Wernerkrauseite
CaFe3+2Mn4+O6
orthorhombisch
Pnma

 
 
Xieite
FeCr2O4
orthorhombisch
Bbmm

Refresh list

Actuality: 16. Jan 2025 - 10:22:50

Other languages

German

Harmunit

English

Harmunite

Russian

Хармунит

CNMNC (IMA)-Number

IMA 2012-045

CNMNC symbol

Symbol

Hmu

Locations with GPS information

IDs

GUSID (Global unique identifier short form) U7ekSIP0nEed7CfadsrjxQ
GUID (Global unique identifier) 48A4B753-F483-479C-9DEC-27DA76CAE3C5
Database ID 7514