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Harmunite (IMA 2012-045)

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

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

Volumne (ų)

297.45

Kristall 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

Author (Name, Year)

Irina O. Galuskina, Yevgeny Vapnik, Biljana Lazic, Thomas Armbruster, Mikhail Murashko und Evgeny V. Galuskin (2013)

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.

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

IMA group assignments

Related minerals "Lapis Classification" [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Hausmannite

Mn2+Mn23+O4

tetragonal : 4/mmm : I41/amd

IV/B.05-010

Iwakiite

Mn2+(Fe3+,Mn3+)2O4

tetragonal : 4/mmm : I41/amd

IV/B.05-020

Xieite

FeCr2O4

orthorhombisch : mmm : Bbmm

IV/B.05-025

Hetaerolite

ZnMn23+O4

tetragonal : 4/mmm : I41/amd

IV/B.05-040

'Hydrohetaerolite'

HZnMn3+1.7O4

tetragonal : 4/mmm : I41/amd

IV/B.05-050

Harmunite

CaFe2O4

orthorhombisch : mmm : Pnma

IV/B.05-058

Marokite

CaMn23+O4

orthorhombisch : mmm, mm2 : Pmab, P21ab

IV/B.05-060

Tegengrenite

(Mg,Mn2+)2(Sb5+,Mn3+)O4

trigonal : 3, 3 : R3, R3

IV/B.05-065

Filipstadite

(Mn2+,Mg)2(Fe3+0.5Sb5+0.5)O4

kubisch : m3m : Fd3m

IV/B.05-070

Other languages

German

Harmunit

English

Harmunite

Russian

Хармунит

IMA Number

IMA 2012-045

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

German pages

DeWikiPedia - search for: Harmunit
Google-Bilder-Suche - search for: Harmunit
Mineralogisch-Petrographisches-Institut Hamburg - search for: Harmunit

English pages

Mindat - search for: Harmunite
Webmineral - search for:Harmunite
Handbook-of-Mineralogy - search for: Harmunite
RRUFF - Raman, XRD and other mineral data - search for: Harmunite
RRUFF - References and PDF downloads - search for: Harmunite
American-Mineralogist-Crystal-Structure-Database - search for: Harmunite
Athena - search for: Harmunite

Russian pages

Webmineral.ru - search for: Хармунит

Mineral Dealer

German pages

hausen - Mineralgroßhandel - search for: Harmunit
Crystal-Treasure.com - search for: Harmunit
Bosse - search for: Harmunit

Locations with GPS information




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