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Columbite-(Fe)

Pictures (50 Images total)

Cheralith, Columbit-(Fe)
Views (File:
1555964299
): 2063
Cheralith, Columbit-(Fe)
grüner monokliner Kristall in Muskovit mit Columbit, aus einem teilweise in Vivianit umgewandeltem, abgerollten Triphylin-Brocken; Bestimmung EDX; Hagendorf Süd, Waidhaus, Oberpfalz, Bayern, Deutschland; Bildbreite 1,2 mm
Copyright: Josef 84,55; Contribution: Josef 84,55
Collection: Josef 84,55
Location: Deutschland/Bayern/Oberpfalz, Bezirk/Neustadt an der Waldnaab, Landkreis/Waidhaus/Hagendorf/Hagendorf-Süd (Grube Cornelia)
Mineral: Cheralite, Columbite-(Fe)
Image: 1555964299
Rating: 10 (votes: 2)
License: Usage for Mineralienatlas project only
Cheralith, Columbit-(Fe)  E
Analysed with energy dispersive X-ray spectroscopy EDX

grüner monokliner Kristall in Muskovit mit Columbit, aus einem teilweise in Vivianit umgewandeltem, abgerollten Triphylin-Brocken; Bestimmung EDX; Hagendorf Süd, Waidhaus, Oberpfalz, Bayern, Deutsc...
Collection: Josef 84,55
Copyright: Josef 84,55
Contribution: Josef 84,55 2019-04-22
Locality: Hagendorf-Süd (Grube Cornelia) / Hagendorf / Waidhaus / Neustadt an der Waldnaab, Landkreis / Oberpfalz, Bezirk / Bayern / Deutschland
Ferrocolumbit
Views (File:
1179766035
): 2000
Ferrocolumbit
FO: Minas Gerais, Brasilien; Größe: 42x23x16 mm
Copyright: rtbstone; Contribution: rtbstone
Collection: rtbstone
Location: Brasilien/Südosten (Região Sudeste)/Minas Gerais
Mineral: Columbite-(Fe)
Image: 1179766035
Rating: 9 (votes: 1)
License: Usage for Mineralienatlas project only
Ferrocolumbit

FO: Minas Gerais, Brasilien; Größe: 42x23x16 mm
Collection: rtbstone
Copyright: rtbstone
Contribution: rtbstone 2007-05-21
Locality: Minas Gerais / Südosten (Região Sudeste) / Brasilien
Ferrocolumbit
Views (File:
1101929277
): 5896, Rating: 7.6
Ferrocolumbit
Tafelige Ferrocolumbit xx in Feldspat, Kristalle bis 2 cm, Fundort: Hagendorf-Süd, Oberpfalz, Bayern, Deutschland
Copyright: berthold; Contribution: Mineralienatlas
Collection: berthold
Location: Deutschland/Bayern/Oberpfalz, Bezirk/Neustadt an der Waldnaab, Landkreis/Waidhaus/Hagendorf/Hagendorf-Süd (Grube Cornelia)
Mineral: Columbite-(Fe)
Image: 1101929277
Rating: 7.6 (votes: 5)
License: Usage for Mineralienatlas project only
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
Locality: Hagendorf-Süd (Grube Cornelia) / Hagendorf / Waidhaus / Neustadt an der Waldnaab, Landkreis / Oberpfalz, Bezirk / Bayern / Deutschland
Columbit-(Fe)
Views (File:
1236699943
): 5500, Rating: 7.75
Columbit-(Fe)
Derberz
Madagaskar, Prov. Antananarivo, Region Antsirabe
Copyright: Neanderthaler; Contribution: Neanderthaler
Collection: Neanderthaler
Mineral: Columbite-(Fe)
Image: 1236699943
Rating: 7.75 (votes: 4)
License: Usage for Mineralienatlas project only
Columbit-(Fe)

Derberz
Madagaskar, Prov. Antananarivo, Region Antsirabe
Collection: Neanderthaler
Copyright: Neanderthaler
Contribution: Neanderthaler 2009-03-10
Ferrocolumbit
Views (File:
1459537064
): 1023
Ferrocolumbit
Tafeliger schwarzer Kristall, BB = 2 mm, Fundort: Alpe Rosso Orcesco Val Vigezzo Verbano-Cusio-Ossola Piemont Italien.
Copyright: Bebo; Contribution: Münchener Micromounter
Collection: Lithothek der Münchener Micromounter, Collection number: A002147, Donator: Karoline Meyer
Location: Italien/Piemont (Piemonte), Region/Verbano-Cusio-Ossola, Provinz/Druogno/Orcesco/Alpe Rosso
Mineral: Columbite-(Fe)
Image: 1459537064
Rating: 8 (votes: 2)
License: Usage for Mineralienatlas project only
Ferrocolumbit (SNr: A002147)

Tafeliger schwarzer Kristall, BB = 2 mm, Fundort: Alpe Rosso Orcesco Val Vigezzo Verbano-Cusio-Ossola Piemont Italien.
Collection: Lithothek der Münchener Micromounter
Copyright: Bebo
Contribution: Münchener Micromounter 2016-04-01
Locality: Alpe Rosso / Orcesco / Druogno / Verbano-Cusio-Ossola, Provinz / Piemont (Piemonte), Region / Italien

You find additional specimen at the Geolitho Museum

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 supergroup  ⇒ 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

Volume (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

Preface

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

 
Columbite supergroup
 
 
 

 
 
Columbite group
 
orthorhombisch
Pbcn

 
 
 
Columbite-(Fe)
Fe2+Nb2O6
orthorhombisch
Pbcn

 
 
 
Columbite-(Mg)
MgNb2O6
orthorhombisch
Pbcn

 
 
 
Columbite-(Mn)
Mn2+Nb2O6
orthorhombisch
Pbcn

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

 
 
 
Tantalite-(Fe)
Fe2+Ta2O6
orthorhombisch
Pbcn

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

 
 
 
Tantalite-(Mn)
MnTa2O6
orthorhombisch
Pbcn

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Actuality: 07. Oct 2024 - 19:19:35

Other languages

German

Columbit-(Fe)

Spanish

Columbita-(Fe)

English

Columbite-(Fe)

Russian

Ферроколумбит

Traditional Chinese

鈮鐵礦

Japanese

鉄ｺﾙﾝﾌﾞ石

Simplified Chinese

铌铁矿

old name

German

Ferrocolumbit

Spanish

Ferrocolumbita

English

Ferrocolumbite

French

Ferrocolumbite

Alternative Name

English

Mossite

Japanese

鉄コルンブ石

CNMNC symbol

Symbol

Clb-Fe

Locations with GPS information

IDs

GUSID (Global unique identifier short form) MVYeRWbzNU22fE2qm5dbqw
GUID (Global unique identifier) 451E5631-F366-4D35-B67C-4DAA9B975BAB
Database ID 1175