https://www.mineraliengrosshandel.com
https://www.mineralbox.biz
https://www.edelsteine-neuburg.de
https://www.mineral-bosse.de
'._('einklappen').'
 

Coulsonite

Pictures (2 Images total)

Coulsonit
Views (File:
1605450437
): 344
Coulsonit
Indien, Bihar. Bidbreite 1,2 mm
Copyright: Ulrich Baumgärtl; Contribution: Ulrich Baumgärtl
Collection: Ulrich Baumgärtl
Location: Indien/Bihar
Mineral: Coulsonite
Image: 1605450437
License: Usage for Mineralienatlas project only
Coulsonit

Indien, Bihar. Bidbreite 1,2 mm

Collection: Ulrich Baumgärtl
Copyright: Ulrich Baumgärtl
Contribution: Ulrich Baumgärtl 2020-11-15
Locality: Bihar / Indien
Coulsonit
Views (File:
1605450935
): 238
Coulsonit
Indien Bihar. Bildbreite 0,3 mm
Copyright: Ulrich Baumgärtl; Contribution: Ulrich Baumgärtl
Collection: Ulrich Baumgärtl
Location: Indien/Bihar
Mineral: Coulsonite
Image: 1605450935
License: Usage for Mineralienatlas project only
Coulsonit

Indien Bihar. Bildbreite 0,3 mm

Collection: Ulrich Baumgärtl
Copyright: Ulrich Baumgärtl
Contribution: Ulrich Baumgärtl 2020-11-15
Locality: Bihar / Indien

You find additional specimen at the Geolitho Museum

Collectors Summary

Color blaugrau
Streak color schwarzbraun
Hardness (Mohs) 4.50 - 5.00
Solubility + H2SO4
Crystal System kubisch, Fd3m

Chemism

Chemical formula

Fe2+V23+O4

Chemical composition

Eisen, Sauerstoff, Vanadium

Unit weight: 221.72594 u; Number of atoms in the formula: 7

Info

Empirical formula:

FeV2O4

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

28.86

4

57.14

15.9994300

63.9977200

Vanadium

V

45.95

2

28.57

50.9415100

101.8830200

Iron

Fe

25.19

1

14.29

55.8452000

55.8452000

Analysis wt%

FeO : 30.75, Fe2O3 : 0.52, V2O3 : 68.41 (Ref: American Mineralogist 62)

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.04-020

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

Classification by Hölzel

4.BD.100

4: OXIDES
B: Spinels R3O4
D: V,Ti,Ge-Spinels

Dana 8th edition

07.02.04.02

07: Multiple Oxides
02: Multiple Oxides (A+ B++)2 X4 Spinel group
04: (Vanadium subgroup)

IMA status

Neudefinition von der CNMNC anerkannt

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

Spinel supergroup  ⇒ Oxyspinel group  ⇒ Spinel subgroup

Optical Properties

Color

blaugrau

Streak color

schwarzbraun

Crystallography

Crystal System

kubisch

Class (H-M)

m3m

Space Group number

227

Space Group

Fd3m

Cell parameters a (Å)

8.297

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)

571.167

X-Ray Powder Diffraction

4.79(30),
2.93(60),
2.50(100),
2.07(80),
1.693(30),
1.597(90),
1.466(90),
1.266(20)

XRD chart Coulsonite

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)

4.50 - 5.00

VHN (Hardness Vickers)

340 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

5.19 (gemessen)

5.157 ( ρ calc. Mineralienatlas )

Instability

+ H2SO4

Preface

Name from

Arthur Lennox Coulson (1898–1955), Geologe und früherer Mitarbeiter beim Indian Geological Survey

Author (Name, Year)

Radtke, 1962

References

Handbook of Mineralogy (Anthony et al.), 3 (1997), 142

IMA group assignments

Other languages

German

Coulsonit

Spanish

Coulsonita

English

Coulsonite

French

Coulsonite

Russian

Кулсонит

Simplified Chinese

钒磁铁矿

CNMNC symbol

Symbol

Cou

Locations with GPS information

IDs

GUSID (Global unique identifier short form) q-2Tsq7n0kKCS4kPMlRlSQ
GUID (Global unique identifier) B293EDAB-E7AE-42D2-824B-890F32546549
Database ID 826