'._('einklappen').'
 

Tapiolite-(Fe)

Pictures (4 Images total)

Tapiolith-(Fe)
Views (Image: 1153231984): 1045
Tapiolith-(Fe)

Mina Quixaba, Frei Martinho, Paraíba, Brasilien;
Größe des Kristalls: 10x8mm

Copyright: Fabre Minerals
Contribution: slugslayer 2006-07-18
Ferrotapiolit
Views (Image: 1266138679): 872
Ferrotapiolit

Kristallgröße: 15 mm; Fundort: Joaquim, Quixaba, Frei Martinho, Paraiba, Nordosten, Brasilien

Collection: giantcrystal
Copyright: slugslayer
Contribution: slugslayer 2010-02-14
Ferrotapiolit
Views (Image: 1264177265): 777
Ferrotapiolit

Kristallgröße: 8 mm; Fundort: Quixaba-Pegmatit, Frei Martinho, Paraíba, Nordostregion, Brasilien

Copyright: Paul Bongaerts
Contribution: slugslayer 2010-01-22
Ferrotapiolit
Views (Image: 1264177218): 778
Ferrotapiolit

Größe: 45x30 mm; Fundort: Alto-do-Giz-Pegmatit, Equador, Nordostregion, Brasilien

Copyright: Paul Bongaerts
Contribution: slugslayer 2010-01-22

Collectors Summary

Color bräunlichschwarz, schwarz
Streak color braun
Hardness (Mohs) 6.25
Solubility - Säuren
Crystal System tetragonal, P42/mnm

Chemism

Chemical formula

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

Chemical composition

Eisen, Mangan, Niob, Tantal, Sauerstoff

Unit weight: 469.490048475 u; Number of atoms in the formula: 9

Info

Empirical formula:

(Fe0.75Mn0.25)(Ta0.75Nb0.25)2O6

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

20.45

6

66.67

15.9994300

95.9965800

Manganese

Mn

2.93

0.25

2.78

54.9380499

13.7345125

Iron

Fe

8.92

0.75

8.33

55.8452000

41.8839000

Niobium

Nb

9.89

0.5

5.56

92.9063820

46.4531910

Tantalum

Ta

57.81

1.5

16.67

180.9479100

271.4218650

Analysis wt%

FeO : 11.03, MnO : 2.72, SnO2 : 0.71, Ta2O5 : 80.77, Nb2O5 : 2.78 (Ref: Canadian Mineralogist 92)

Strunz 9th edition incl. updates

4.DB.10

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
10:Tapiolit-Gruppe

Lapis Classification

IV/D.04-010

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

Classification by Hölzel

4.DD.440

4: OXIDES
D: Dioxides
D: Rutile-Group
4: Trirutiles

Dana 8th edition

08.03.01.01

08: Multiple Oxides with Nb, Ta, and Ti
03: Multiple Oxides with Nb, Ta, and Ti where A (B2O6)
01: Tapiolite Series

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

bräunlichschwarz, schwarz

Streak color

braun

Diaphaneity (Transparency)

opak

max. Birefringence

0.15

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

2.27

RI value β

  • (Li)

RI value γ / ε

2.42

Ri mean

2.320

2V angle

Uniaxial (+)

Optical Data Luminescence

Luminescence

keine Fluoreszenz bekannt

Crystallography

Crystal System

tetragonal

Class (H-M)

4/mmm

Space Group number

136

Space Group

P42/mnm

Cell parameters a (Å)

4.75

Cell parameters b (Å)

-

Cell parameters c (Å)

9.24

Cell parameters a/b or c/a

1.945

Cell parameters c/b

-

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

2

Volumne (ų)

208.478

X-Ray Powder Diffraction

3.37(100),
2.58(90),
2.375(50),
1.747(90),
1.677(50),
1.501(50),
1.407(50),
1.395(50)

XRD chart Tapiolite-(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)

926 (100g)

Density (g/cm³)

7.82

7.479 ( ρ calc. Mineralienatlas )

Instability

- Säuren

Preface

Author (Name, Year)

Lahti & Johanson & Virkkunen, 1983

References

Geological Society of Finland, Bulletin 55 (1983), 101

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

Byströmite

MgSb2O6

tetragonal : 4/mmm : P42/mnm

4.DB.10

Ordoñezite

ZnSb2O6

tetragonal : 4/mmm : P42/mnm

4.DB.10

'Tapiolite'

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

4.DB.10

Tapiolite-(Fe)

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

tetragonal : 4/mmm : P42/mnm

4.DB.10

Tapiolite-(Mn)

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

tetragonal : 4/mmm : P42/mnm

4.DB.10

Related minerals "Lapis 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

IV/D.04-010

Tapiolite-(Mn)

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

tetragonal : 4/mmm : P42/mnm

IV/D.04-020

Byströmite

MgSb2O6

tetragonal : 4/mmm : P42/mnm

IV/D.04-040

Ordoñezite

ZnSb2O6

tetragonal : 4/mmm : P42/mnm

IV/D.04-050

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

Byströmite

MgSb2O6

tetragonal : 4/mmm : P42/mnm

4.DD.400

Ordoñezite

ZnSb2O6

tetragonal : 4/mmm : P42/mnm

4.DD.410

Tapiolite-(Fe)

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

tetragonal : 4/mmm : P42/mnm

4.DD.440

Tapiolite-(Mn)

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

tetragonal : 4/mmm : P42/mnm

4.DD.450

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

Spanish

Ferrotapiolita

French

Ferrotapiolite

German

Tapiolit-(Fe)

English

Tapiolite-(Fe)

Russian

Тапиолит-(Fe)

Russian

Ферротапиолит

Simplified Chinese

重钽铁矿

Japanisch

鉄タピオ石

old name

German

Ferrotapiolit

Alternative Name

English

Ferrotapiolite

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

German pages

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

English pages

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

Russian pages

Webmineral.ru - search for: Ферротапиолит

Mineral Dealer

German pages

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



Notice: "Undefined variable: ub"