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Columbite-(Fe)

Pictures (36 Images total)

Ferrocolumbit
Views (Image: 1101929277): 4921, Rating: 7.6
Ferrocolumbit

Tafelige Ferrocolumbit xx in Feldspat, Kristalle bis 2 cm, Fundort: Hagendorf-Süd, Oberpfalz, Bayern, Deutschland

Collection: berthold
Copyright: berthold
Contribution: Mineralienatlas 2004-12-01
Columbit-(Fe)
Views (Image: 1236699943): 3737, Rating: 7.75
Columbit-(Fe)

Derberz
Madagaskar, Prov. Antananarivo, Region Antsirabe

Collection: Neanderthaler
Copyright: Neanderthaler
Contribution: Neanderthaler 2009-03-10
Kassiterit X mit tafeligen Columbit-(Fe)-Kristallen
Views (Image: 1222280961): 2122
Kassiterit X mit tafeligen Columbit-(Fe)-Kristallen

Größe: Kassiterit 2,5 cm, Columbit-(Fe) 2,0 cm; Fundort: Darra-i-Pech, Nangarhar, Afghanistan

Copyright: UKMining Ventures
Contribution: slugslayer 2008-09-24
Columbit-(Fe)
Views (Image: 1378229047): 1155
Columbit-(Fe)

Größe: 2,5 x 1,9 x 1,6 cm, Fundort: Ipe Mine, Governador Valadares, Minas Gerais, Brasilien

Copyright: Rob Lavinsky
Contribution: thdun5 2013-09-03
Columbit-(Fe)
Views (Image: 1408899839): 1256
Columbit-(Fe) (SNr: A029169)

Tafeliger schwarzer Kristall, BB = 3,5 mm. Fundort: Steiningerbruch, Luftenberg, Luftenberg an der Donau, Perg, Oberösterreich, Österreich.

Collection: Lithothek der Münchener Micromounter
Copyright: Hannes Osterhammer
Contribution: Münchener Micromounter 2014-08-24
Columbit-(Fe)
Views (Image: 1476984007): 472
Columbit-(Fe)

Columbitkristall 5cm x 2cm auf Matrix; Gefunden in Iveland (Norwegen) im Oktober 2016.

Collection: Lars23
Copyright: Sascha Gemballa
Contribution: Lars23 2016-10-20

Collectors Summary

Color grauweiß mit einem bräunlichen Farbton und rötlich internen Reflektionen
Streak color schwärzlich braun
Hardness (Mohs) 6.25
Solubility +++ konz. H2SO4
Crystal System orthorhombisch, Pbcn

Chemism

Chemical formula

Fe2+Nb2O6

Chemical composition

Eisen, Niob, Sauerstoff

Unit weight: 337.654544 u; Number of atoms in the formula: 9

Info

Empirical formula:

FeNb2O6

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

28.43

6

66.67

15.9994300

95.9965800

Iron

Fe

16.54

1

11.11

55.8452000

55.8452000

Niobium

Nb

55.03

2

22.22

92.9063820

185.8127640

Analysis wt%

MnO : 5.97, FeO : 15.04, SnO2 : 0.67, Nb2O5 : 72.37, Ta2O5 : 5.26, CaO : 0.58 (Ref: Dana, 7th ed. 1)

Strunz 9th edition incl. updates

4.DB.35

4: Oxide, Hydroxide (Oxide, Hydroxide, V[5,6]-Vanadate, Arsenite, Antimonite, Bismutite, Sulfite, Selenite, Tellurite, Iodate)
D: Metall: Sauerstoff = 1:2 und vergleichbare
B: Mit mittelgroßen [Kationen]: Ketten kantenverknüpfter Oktaeder
35:Columbit-Gruppe

Lapis Classification

IV/D.18-030

IV: OXIDE
D: Oxide mit Verhältnis Metall : Sauerstoff = 1:2 (MO2 und verwandte Verbindungen)
18: Columbit-Gruppe

Classification by Hölzel

4.DI.210

4: OXIDES
D: Dioxides
I: Columbite-Group

Dana 8th edition

08.03.02.02

08: Multiple Oxides with Nb, Ta, and Ti
03: Multiple Oxides with Nb, Ta, and Ti where A (B2O6)
02: Tantalite - Columbite Series

IMA status

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

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

Columbite group

Optical Properties

Color

grauweiß mit einem bräunlichen Farbton und rötlich internen Reflektionen

Streak color

schwärzlich braun

Diaphaneity (Transparency)

durchscheinend bis opak

max. Birefringence

0.123

Birefringence chart\! Columbite-(Fe) title=Birefringence chart Columbite-(Fe)

Michel-Levy Color Chart viewed according to the maximum birefringence (at 30μm). Mineral color is not taken into account. Click on the image to enlarge or change thickness.

RI value α / ω / n

2.339

RI value β

2.400

RI value γ / ε

2.462

Ri mean

2.400

2V angle

Biaxial (-) 87°

Optical Data Luminescence

Luminescence

keine Fluoreszenz bekannt

Crystallography

Crystal System

orthorhombisch

Class (H-M)

mmm

Space Group number

60

Space Group

Pbcn

Cell parameters a (Å)

14.189

Cell parameters b (Å)

5.727

Cell parameters c (Å)

5.120

Cell parameters a/b or c/a

2.478

Cell parameters c/b

0.894

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

4

Volumne (ų)

416.053

X-Ray Powder Diffraction

3.675(40),
2.977(100),
2.873(10),
2.539(10),
2.501(10),
2.386(10),
1.738(10),
1.726(20)

XRD chart Columbite-(Fe)

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)

6.25

VHN (Hardness Vickers)

821 (50g)

Density (g/cm³)

5.3 - 7.3 / Durchschnittlich = 6.3

5.39 ( ρ calc. Mineralienatlas )

Instability

+++ konz. H2SO4

(Co-)Type locality

(Co-)Type locality

Australien/Western Australia/Pilbara/Wodgina/Greens Well

Author (Name, Year)

Simpson, 1928

References

Handbook of Mineralogy (Anthony et al.), 3 (1997), 192

Tidying up mineral names: an IMA-CNMNC scheme for suffixes, hyphens and diacritical marks: Mineral. Record, 39 (2008), 131-135

System of Mineralogy, vol. II. Bell & Bradfute, Edinburgh (1805), 582

American Mineralogist 90 (2005), 1291

Balassone, G., Danisi, R.M., Armbruster, T., Altomare, A., Moliterni, A.G., Petti, C., Mondillo, N., Ghiara, M.R., Saviano, M. - An insight into crystal chemistry and cation order of columbite-(Fe) and columbite-(Mn) from worldwide occurrences. Neues Jahrbuch für Mineralogie - Abhandlungen, 192 (2015), 275–287.

IMA group assignments

 
 
orthorhombisch
Pbcn

 
 
Fe2+Nb2O6
orthorhombisch
Pbcn

 
 
MgNb2O6
orthorhombisch
Pbcn

 
 
Mn2+Nb2O6
orthorhombisch
Pbcn

 
 
(Fe2+,Mn)2(Nb,Ta)2W6+O10
orthorhombisch
Pbcn

 
 
Fe2+Ta2O6
orthorhombisch
Pbcn

 
 
(Mg,Fe2+)(Ta,Nb)2O6
orthorhombisch
Pbcn

 
 
MnTa2O6
orthorhombisch
Pbcn

Refresh list

Actuality: 14. Nov 2018 - 19:34:21

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

'Columbite'

(Fe,Mn)(Nb,Ta)2O6

4.DB.35

Columbite-(Fe)

Fe2+Nb2O6

orthorhombisch : mmm : Pbcn

4.DB.35

Columbite-(Mg)

MgNb2O6

orthorhombisch : mmm : Pbcn

4.DB.35

Columbite-(Mn)

Mn2+Nb2O6

orthorhombisch : mmm : Pbcn

4.DB.35

Qitianlingite

(Fe2+,Mn)2(Nb,Ta)2W6+O10

orthorhombisch : mmm : Pbcn

4.DB.35

Tantalite-(Fe)

Fe2+Ta2O6

orthorhombisch : mmm : Pbcn

4.DB.35

Tantalite-(Mg)

(Mg,Fe2+)(Ta,Nb)2O6

orthorhombisch : mmm : Pbcn

4.DB.35

Tantalite-(Mn)

MnTa2O6

orthorhombisch : mmm : Pbcn

4.DB.35

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

Columbite-(Mg)

MgNb2O6

orthorhombisch : mmm : Pbcn

IV/D.18-010

Columbite-(Mn)

Mn2+Nb2O6

orthorhombisch : mmm : Pbcn

IV/D.18-020

Columbite-(Fe)

Fe2+Nb2O6

orthorhombisch : mmm : Pbcn

IV/D.18-030

Tantalite-(Mg)

(Mg,Fe2+)(Ta,Nb)2O6

orthorhombisch : mmm : Pbcn

IV/D.18-035

Tantalite-(Mn)

MnTa2O6

orthorhombisch : mmm : Pbcn

IV/D.18-040

Tantalite-(Fe)

Fe2+Ta2O6

orthorhombisch : mmm : Pbcn

IV/D.18-050

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

Columbite-(Mg)

MgNb2O6

orthorhombisch : mmm : Pbcn

4.DI.200

Columbite-(Fe)

Fe2+Nb2O6

orthorhombisch : mmm : Pbcn

4.DI.210

Columbite-(Mn)

Mn2+Nb2O6

orthorhombisch : mmm : Pbcn

4.DI.220

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

Tapiolite-(Fe)

(Fe2+,Mn2+)(Ta,Nb)2O6

tetragonal : 4/mmm : P42/mnm

08.03.01.01

Tapiolite-(Mn)

(Mn2+,Fe2+)(Ta,Nb)2O6

tetragonal : 4/mmm : P42/mnm

08.03.01.02

Columbite-(Fe)

Fe2+Nb2O6

orthorhombisch : mmm : Pbcn

08.03.02.02

Tantalite-(Mn)

MnTa2O6

orthorhombisch : mmm : Pbcn

08.03.02.03

Columbite-(Mn)

Mn2+Nb2O6

orthorhombisch : mmm : Pbcn

08.03.02.04

Tantalite-(Mg)

(Mg,Fe2+)(Ta,Nb)2O6

orthorhombisch : mmm : Pbcn

08.03.02.06

Fersmite

(Ca,Ce,Na)(Nb,Ta,Ti)2(O,OH,F)6

orthorhombisch : mmm : Pbcn

08.03.03.01

Brannerite

(U,Ca,Y,Ce)(Ti,Fe)2O6

monoklin : 2/m : C2/m

08.03.04.01

Thorutite

(Th,U,Ca)Ti2(O,OH)6

monoklin : 2/m : C2/m

08.03.04.02

Lucasite-(Ce)

(Ce,La)Ti2(O,OH)6

monoklin : 2/m : I2/a

08.03.05.01

Aeschynite-(Ce)

(Ce,Ca,Fe,Th)(Ti,Nb)2(O,OH)6

orthorhombisch : mmm : Pbnm

08.03.06.01

Nioboaeschynite-(Ce)

(Ce,Ca)(Nb,Ti)2(O,OH)6

orthorhombisch : mmm : Pbnm

08.03.06.02

Aeschynite-(Y)

(Y,Ln,Ca,Th)(Ti,Nb)2(O,OH)6

orthorhombisch : mmm : Pbnm

08.03.06.03

Aeschynite-(Nd)

(Nd,Ln,Ca)(Ti,Nb)2(O,OH)6

08.03.06.05

Vigezzite

(Ca,Ce)(Nb,Ta,Ti)2O6

orthorhombisch : mmm : Pbnm

08.03.07.01

Rynersonite

Ca(Ta,Nb)2O6

orthorhombisch : mmm : Pbnm

08.03.07.02

Polycrase-(Y)

(Y,Ca,Ce,U,Th)(Ti,Nb,Ta)2O6

orthorhombisch : mmm : Pbcn

08.03.08.01

Euxenite-(Y)

Y(Nb0.5Ti0.5)2O6

orthorhombisch : mmm : Pbcn

08.03.08.02

Tanteuxenite-(Y)

(Y,Ce,Ca)(Ta,Nb,Ti)2(O,OH)6

orthorhombisch : mmm : Pbcn

08.03.08.03

'Yttrocrasite-(Y)'

(Y,Th,Ca,U)(Ti,Fe3+)2(O,OH)6

08.03.08.04

Uranopolycrase

(U,Y)(Ti,Nb,Ta)2(O,OH)6

orthorhombisch : mmm : Pbcn

08.03.08.05

Kassite

CaTi2O4(OH)2

monoklin : 2/m : P21/a

08.03.09.01

Other languages

German

Columbit-(Fe)

Spanish

Columbita-(Fe)

English

Columbite-(Fe)

Russian

Ферроколумбит

Traditional Chinese

鈮鐵礦

Japanisch

鉄コルンブ石

Simplified Chinese

铌铁矿

old name

German

Ferrocolumbit

Spanish

Ferrocolumbita

English

Ferrocolumbite

French

Ferrocolumbite

Alternative Name

English

Mossite

Japanisch

鉄コルンブ石

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

German pages

DeWikiPedia - search for: Columbit-(Fe)
Google-Bilder-Suche - search for: Columbit-(Fe)
Mineralogisch-Petrographisches-Institut Hamburg - search for: Columbit-(Fe)

English pages

Mindat - search for: Columbite-(Fe)
Webmineral - search for: Columbite-(Fe)
Handbook-of-Mineralogy - search for: Columbite-(Fe)
RRUFF Database-of-Raman-spectroscopy - search for: Columbite-(Fe)
American-Mineralogist-Crystal-Structure-Database - search for: Columbite-(Fe)
Athena - search for: Columbite-(Fe)

Russian pages

Webmineral.ru - search for: Ферроколумбит

Mineral Dealer

German pages

hausen - Mineralgroßhandel - search for: Columbit-(Fe)
Crystal-Treasure.com - search for: Columbit-(Fe)
Bosse - search for: Columbit-(Fe)



Notice: "Undefined variable: ub"