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Titanomaghemite

Additional Functions

Collectors Summary

Crystal System kubisch, P4332, P4132

Additional information / Summary

könnte Titan-haltiger Maghemit sein

Chemism

Chemical formula

Fe3+(Fe3+,Ti4+,Fe2+,☐)2O4

Chemical composition

Eisen, Titan, Sauerstoff, Vakanz

Unit weight: 221.161940001 u; Number of atoms in the formula: 7

Info

Empirical formula:

Fe(Fe0.55Ti0.3Fe0.1Vc0.05)2O4

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Vacancy

Vc

0.00

0.1

1.43

0.0000000

0.0000000
Oxygen

O

28.94

4

57.14

15.9994300

63.9977200
Titanium

Ti

12.99

0.6

8.57

47.8671000

28.7202600
Iron

Fe

58.08

2.3

32.86

55.8452000

128.4439600

Strunz 9th edition incl. updates

4.BB.15

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]
15:Maghemit-Gruppe

IMA status

vererbt (pre IMA), fragwürdig

Mineral status

Mineralstatus fragwürdig

IMA Classification

IMA Classification

 Spinel supergroup  ⇒ Oxyspinel group  ⇒ Spinel subgroup

Crystallography

Crystal System

kubisch

Class (H-M)

432

Space Group number

212

Space Group

P4332, P4132

Cell parameters a (Å)

8.341

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

Volume (ų)

580.302

X-Ray Powder Diffraction

4.807(40),
2.949(80),
2.515(100),
2.084(80),
1.703(60),
1.605(90),
1.474(90),
1.086(60)
XRD chart Titanomaghemite

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

Crystal Structure 3D

Open larger view

Physical Properties

Density (g/cm³)

5.063 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

Südafrika/Gauteng, Provinz/Pretoria (Tshwane), Distrikt

Preface

Name from

eine Zusammensetzung aus dem Formel-Bestandteil Titan und dem Mineralnamen Maghemit

Author (Name, Year)

Basta, 1953

References

Mineralogical Magazine 31 (1957), 624. Economic Geology 54 (1959), 698.

Collyer, S., Grimes, N.W., Vaughan, D.J., and Longworth, G. (1988) Studies of the crystal structure and crystal chemistry of titanomaghemite. American Mineralogist: 73: 153-160.

Mineralogical Magazine 53 (1989), 299.

Strunz Mineralogical Tables 9. Edition (2001), 190.

IMA group assignments

Other languages

German

Titanomaghemit

Spanish

Titanomaghemita

French

Titanomaghemite

English

Titanomaghemite

Russian

Титаномаггемит

CNMNC symbol

Symbol

Tmgh

IDs

GUSID (Global unique identifier short form) DUgRM6av7Uumga-Oy37vOQ
GUID (Global unique identifier) 3311480D-AFA6-4BED-A681-AF8ECB7EEF39
Database ID 4530