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Tantalum

Pictures (2 Images total)

Tantal-Stabstück
Views (Image: 1139419563): 4925
Tantal-Stabstück

Größe: 4,3 cm, Gewicht: 200,1 g; 3N

Collection: scheidewasser
Copyright: scheidewasser
Contribution: slugslayer 2006-02-08
Tantal
Views (Image: 1545033179): 754
Tantal

Tantalkugel; Reinheit: 99,99 %; Durchmesser: 30 mm; Gewicht: 345 g

Collection: Marco Gabriel Collection
Copyright: guslis
Contribution: guslis 2018-12-17

Collectors Summary

Color grau-weiß
Lustre Metallglanz
Hardness (Mohs) 4
Crystal System kubisch, Im3m

Chemism

Chem­ical formula

Ta

Addi­tional chem. informa­tion

möglicherweise Tantalcarbid

Chem­ical com­po­si­tion

Tantal

Unit weight: 180.94791 u; Number of atoms in the formula: 1

Info

Empirical formula:

Ta

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Tantalum

Ta

100.00

1

100.00

180.9479100

180.9479100

Strunz 9th edi­tion incl. updates

1.AE.10

1: Elemente (Metalle, intermetallische Legierungen, Metalloide u. Nichtmetalle, Carbide, Silicide, Nitride u. Phosphide)
A: Metalle und intermetallische Legierungen
E: Eisen-Chrom-Familie
10:Taenit-Gruppe

Lapis Clas­sifica­tion

I/A.06-007

I: ELEMENTE
A: Metalle und intermetallische Verbindungen

IMA sta­tus

Diskreditiert von der CNMNC 1964, natürliches Vorkommen nicht bestätigt

Optical Properties

Color

grau-weiß

Diaphane­ity (Trans­parency)

opak

Lus­tre

Metallglanz

Crystallography

Crystal Sys­tem

kubisch

Class (H-M)

m3m

Space Group number

229

Space Group

Im3m

Cell param­e­ters a (Å)

3.31

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

2

Volumne (ų)

36.265

X-Ray Pow­der Diffrac­tion

2.34(100),
1.654(20),
1.349(80),
1.171(30),
1.046(50)

XRD chart Tantalum

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

Crystal Structure 3D

Open larger view

Physical Properties

Hard­ness (Mohs)

4

Density (g/cm³)

16.44 (berechnet)

16.57 ( ρ calc. Mineralienatlas )

Preface

Author (Name, Year)

Walther, 1909

References

Walther (1909), Nature 81, 335.

Bulletin de la Société Française Minéralogie et de Cristallographie 87 (1964), 291

Transactions (Doklady) of the USSR Academy of Sciences, Earth Science Sections 361 (1998), 642

American Mineralogist 84 (1999), 992.

Strunz Mineralogical Tables 9. Edition (2001), 41.

Detailed description

Tantal als Element - Technische Daten

Ordnungszahl:

73

Dichte (g/cm3):

16,650

Härte:

6,5

relat. Atommasse (amu):

180,9479

Atomradius (berechnet) in pm:

145 (200)

Oxidationszahlen:

5

Elektronegativität (Pauling):

1,5

Elektronenkonfiguration:

[Xe]4f145d36s2

Schmelzpunkt:

3017°C (3290 K)

Siedepunkt:

5458°C (5731 K)

natürl. Häufigkeit:

1 ppm

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

Taenite

(Ni,Fe)

kubisch : m3m : Fm3m

1.AE.10

'Tantalum'

Ta

kubisch : m3m : Im3m

1.AE.10

Tetrataenite

FeNi

monoklin : m : Pm

1.AE.10

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

Titanium

Ti

hexagonal : 6/mmm : P63/mmc

I/A.06-005

'Tantalum'

Ta

kubisch : m3m : Im3m

I/A.06-007

Tungsten

W

kubisch : m3m : Im3m

I/A.06-008

Chromium

Cr

kubisch : m3m : Im3m

I/A.06-010

Ferchromide

Cr3Fe1-x

kubisch : m3m : Pm3m

I/A.06-020

Chromferide

Fe1.5Cr0.2

kubisch : m3m : Pm3m

I/A.06-030

Alternative Name

Japanese

自然タンタル

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

German pages

DeWikiPedia - search for: Tantal
Google-Bilder-Suche - search for: Tantal
Mineralogisch-Petrographisches-Institut Hamburg - search for: Tantal

English pages

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

Russian pages

Webmineral.ru - search for: Тантал

Mineral Dealer

German pages

hausen - Mineralgroßhandel - search for: Tantal
Crystal-Treasure.com - search for: Tantal
Bosse - search for: Tantal

Locations with GPS information