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Galaxite

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Galaxit
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Galaxit

orange Kristalle von Galaxit neben Calcit und Mn-Oxiden, Kitteln Mine, Nordmark, Filipstad, Värmland, Schweden; BB < 1 mm

Copyright: Joy Desor
Contribution: openpit 2020-06-01
Locality: Kittel Gruvan (Kitteln Mine) / Nordmark (Nordmarksberg) / Filipstad, Gemeinde / Värmland, Provinz / Schweden

Collectors Summary

Color schwarz
Streak color rötlichbraun
Hardness (Mohs) 7.50 - 8.00
Solubility ++ H2SO4, KHSO4-Schmelze
Crystal System kubisch, Fd3m

Chemism

Chem­ical formula

(Mn,Fe2+,Mg)(Al,Fe3+)2O4

Chem­ical com­po­si­tion

Aluminium, Eisen, Magnesium, Mangan, Sauerstoff

Unit weight: 184.53952324 u; Number of atoms in the formula: 7

Info

Empirical formula:

(Mn0.6Fe0.3Mg0.1)(Al0.75Fe0.25)2O4

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

34.68

4

57.14

15.9994300

63.9977200

Magnesium

Mg

1.32

0.1

1.43

24.3050600

2.4305060

Aluminium

Al

21.93

1.5

21.43

26.9815382

40.4723073

Manganese

Mn

17.86

0.6

8.57

54.9380499

32.9628299

Iron

Fe

24.21

0.8

11.43

55.8452000

44.6761600

Anal­y­sis wt%

Al2O3 : 45.10, Fe2O3 : 16.60, MnO : 35.70, FeO : 1.40, CoO : 0.84, MgO : 0.53 (Ref: American Mineralogist 83)

Strunz 9th edi­tion incl. updates

4.BB.05

4: Oxide, Hydroxide (Oxide, Hydroxide, V[5,6]-Vanadate, Arsenite, Antimonite, Bismutite, Sulfite, Selenite, Tellurite, Iodate)
B: Metall: Sauerstoff = 3:4 und vergleichbare
B: Mit ausschließlich mittelgroßen [Kationen]
05:Spinel-Gruppe

Lapis Clas­sifica­tion

IV/B.01-030

IV: OXIDE
B: Oxide mit Verhältnis Metall zu Sauerstoff = 3:4 (Spinelltyp M3O4 und verwandte Verbindungen)
1: Spinell-Gruppe; Aluminat-Spinelle

Clas­sifica­tion by Hölzel

4.BA.160

4: OXIDES
B: Spinels R3O4
A: Al-Spinels

Dana 8th edi­tion

07.02.01.02

07: Multiple Oxides
02: Multiple Oxides (A+ B++)2 X4 Spinel group
01: (Aluminum subgroup)

IMA sta­tus

Erstbeschreibung vor CNMNC-Gründung (1959), als Mineral meist anerkannt

Min­eral sta­tus

anerkanntes Mineral

IMA Classification

IMA Clas­sifica­tion

Spinel supergroup  ⇒ Oxyspinel group  ⇒ Spinel subgroup

Optical Properties

Color

schwarz

Streak color

rötlichbraun

RI value α / ω / n

1.856

Ri mean

1.856

2V angle

Isotropisch

Crystallography

Crystal Sys­tem

kubisch

Class (H-M)

m3m

Space Group number

227

Space Group

Fd3m

Cell param­e­ters a (Å)

8.204

Cell param­e­ters b (Å)

-

Cell param­e­ters c (Å)

-

Cell param­e­ters a/b or c/a

1

Cell param­e­ters c/b

-

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

90°

Z

8

Volumne (ų)

552.175

X-Ray Pow­der Diffrac­tion

2.900(70),
2.474(100),
2.051(30),
1.675(20),
1.579(50),
1.450(40),
0.837(20),
0.793(20)

XRD chart Galaxite

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)

7.50 - 8.00

VHN (Hard­ness Vick­ers)

1372 (100g)

Density (g/cm³)

4.077 (berechnet)

4.439 ( ρ calc. Mineralienatlas )

Insta­bil­ity

++ H2SO4, KHSO4-Schmelze

(Co-)Type locality

(Co-)Type locality

USA/North Carolina/Alleghany Co./Sparta/Bald Knob

Preface

Author (Name, Year)

Ross & Kerr, 1932

References

Handbook of Mineralogy (Anthony et al.), 3 (1997), 216

Shuangmeng Zhai, Yuan Yin, Sean R. Shieh, Yun-Yuan Chang, Tianqi Xie, Weihong Xue - Raman spectroscopic study of MnAl2O4 galaxite at various pressures and temperatures - Physics and Chemistry of Minerals (2016) pp 1–8

IMA group assignments

Related minerals "Strunz Classification" (9. Edition) [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Xieite

FeCr2O4

orthorhombisch : mmm : Bbmm

4.BB.05

Gahnite

ZnAl2O4

kubisch : m3m : Fd3m

4.BB.05

Chromite

Fe2+Cr2O4

kubisch : m3m : Fd3m

4.BB.05

Galaxite

(Mn,Fe2+,Mg)(Al,Fe3+)2O4

kubisch : m3m : Fd3m

4.BB.05

Spinel

MgAl2O4

kubisch : m3m : Fd3m

4.BB.05

Hercynite

Fe2+Al2O4

kubisch : m3m : Fd3m

4.BB.05

Jacobsite

(Mn2+,Fe2+,Mg)(Fe3+,Mn3+)2O4

kubisch : m3m : Fd3m

4.BB.05

Magnetite

Fe2+Fe23+O4

kubisch : m3m : Fd3m

4.BB.05

Qandilite

(Mg,Fe2+)2(Ti,Fe3+,Al)O4

kubisch : m3m : Fd3m

4.BB.05

Trevorite

NiFe23+O4

kubisch : m3m : Fd3m

4.BB.05

Cochromite

(Co,Ni,Fe2+)(Cr,Al)2O4

kubisch : m3m : Fd3m

4.BB.05

Coulsonite

Fe2+V23+O4

kubisch : m3m : Fd3m

4.BB.05

'Nichromite'

(Ni,Co,Fe2+)(Cr,Fe3+,Al)2O4

kubisch : m3m : Fd3m

4.BB.05

Franklinite

(Zn,Mn2+,Fe2+)(Fe3+,Mn3+)2O4

kubisch : m3m : Fd3m

4.BB.05

Filipstadite

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

kubisch : m3m : Fd3m

4.BB.05

Tegengrenite

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

trigonal : 3, 3 : R3, R3

4.BB.05

Cuprospinel

(Cu,Mg)Fe23+O4

kubisch : m3m : Fd3m

4.BB.05

Ulvöspinel

TiFe22+O4

kubisch : m3m : Fd3m

4.BB.05

Zincochromite

ZnCr2O4

kubisch : m3m : Fd3m

4.BB.05

Vuorelainenite

(Mn2+,Fe2+)(V3+,Cr3+)2O4

kubisch : m3m : Fd3m

4.BB.05

Magnesioferrite

MgFe23+O4

kubisch : m3m : Fd3m

4.BB.05

Manganochromite

(Mn,Fe2+)(Cr,V)2O4

kubisch : m3m : Fd3m

4.BB.05

Magnesiochromite

MgCr2O4

kubisch : m3m : Fd3m

4.BB.05

Magnesiocoulsonite

MgV23+O4

kubisch : m3m : Fd3m

4.BB.05

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

Spinel

MgAl2O4

kubisch : m3m : Fd3m

IV/B.01-010

Hercynite

Fe2+Al2O4

kubisch : m3m : Fd3m

IV/B.01-020

Galaxite

(Mn,Fe2+,Mg)(Al,Fe3+)2O4

kubisch : m3m : Fd3m

IV/B.01-030

Gahnite

ZnAl2O4

kubisch : m3m : Fd3m

IV/B.01-040

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

Spinel

MgAl2O4

kubisch : m3m : Fd3m

4.BA.100

Gahnite

ZnAl2O4

kubisch : m3m : Fd3m

4.BA.110

Hercynite

Fe2+Al2O4

kubisch : m3m : Fd3m

4.BA.150

Galaxite

(Mn,Fe2+,Mg)(Al,Fe3+)2O4

kubisch : m3m : Fd3m

4.BA.160

Related minerals "Dana 8. Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Spinel

MgAl2O4

kubisch : m3m : Fd3m

07.02.01.01

Galaxite

(Mn,Fe2+,Mg)(Al,Fe3+)2O4

kubisch : m3m : Fd3m

07.02.01.02

Hercynite

Fe2+Al2O4

kubisch : m3m : Fd3m

07.02.01.03

Gahnite

ZnAl2O4

kubisch : m3m : Fd3m

07.02.01.04

Magnesioferrite

MgFe23+O4

kubisch : m3m : Fd3m

07.02.02.01

Jacobsite

(Mn2+,Fe2+,Mg)(Fe3+,Mn3+)2O4

kubisch : m3m : Fd3m

07.02.02.02

Magnetite

Fe2+Fe23+O4

kubisch : m3m : Fd3m

07.02.02.03

Franklinite

(Zn,Mn2+,Fe2+)(Fe3+,Mn3+)2O4

kubisch : m3m : Fd3m

07.02.02.04

Trevorite

NiFe23+O4

kubisch : m3m : Fd3m

07.02.02.05

Cuprospinel

(Cu,Mg)Fe23+O4

kubisch : m3m : Fd3m

07.02.02.06

Brunogeierite

(Fe2+)2Ge4+O4

kubisch : m3m : Fd3m

07.02.02.07

Magnesiochromite

MgCr2O4

kubisch : m3m : Fd3m

07.02.03.01

Manganochromite

(Mn,Fe2+)(Cr,V)2O4

kubisch : m3m : Fd3m

07.02.03.02

Chromite

Fe2+Cr2O4

kubisch : m3m : Fd3m

07.02.03.03

Cochromite

(Co,Ni,Fe2+)(Cr,Al)2O4

kubisch : m3m : Fd3m

07.02.03.05

Zincochromite

ZnCr2O4

kubisch : m3m : Fd3m

07.02.03.06

Vuorelainenite

(Mn2+,Fe2+)(V3+,Cr3+)2O4

kubisch : m3m : Fd3m

07.02.04.01

Coulsonite

Fe2+V23+O4

kubisch : m3m : Fd3m

07.02.04.02

Magnesiocoulsonite

MgV23+O4

kubisch : m3m : Fd3m

07.02.04.03

Qandilite

(Mg,Fe2+)2(Ti,Fe3+,Al)O4

kubisch : m3m : Fd3m

07.02.05.01

Ulvöspinel

TiFe22+O4

kubisch : m3m : Fd3m

07.02.05.02

Kusachiite

CuBi2O4

tetragonal : 4/mmm : P4/ncc

07.02.06.01

Iwakiite

Mn2+(Fe3+,Mn3+)2O4

tetragonal : 4/mmm : I41/amd

07.02.06.02

Hausmannite

Mn2+Mn23+O4

tetragonal : 4/mmm : I41/amd

07.02.07.01

Hetaerolite

ZnMn23+O4

tetragonal : 4/mmm : I41/amd

07.02.07.02

'Hydrohetaerolite'

HZnMn3+1.7O4

tetragonal : 4/mmm : I41/amd

07.02.07.03

Minium

Pb2+2Pb4+O4

tetragonal : 4/mmm : P42/mbc

07.02.08.01

Chrysoberyl

BeAl2O4

orthorhombisch : mmm : Pbnm

07.02.09.01

CNMNC symbol

Symbol

Glx

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

German pages

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

English pages

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

Russian pages

Webmineral.ru - search for: Галаксит

Mineral Dealer

German pages

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

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