Tantalum Mineral Data

Tantalum Mineral Data

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General Tantalum Information

Chemical Formula:

Composition:

Molecular Weight = 180.95 gm

Tantalum 100.00 % Ta

______

100.00 %

Empirical Formula:

Environment:

Alluvial placer deposits.

IMA Status:

Not Approved IMA

Locality:

Primorskiy Kray, near Osimovka and Abramovka Rivers, Russia. Link to MinDat.org Location Data.

Name Origin:

Greek, Tantalos = father of Niobe.

Search for Tantalum Images

Images:

Image not yet available on Webmineral.com

Try searching images.google.com or Mindat Picture Gallary for mineral pictures. Caution: The images retrieved may not be appropriate.

Tantalum Crystallography

Cell Dimensions:

a = 3.3058, Z = 2; V = 36.13 Den(Calc)= 16.63

Crystal System:

Isometric - HexoctahedralH-M Symbol (4/m 3 2/m) Space Group: I m3m

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 2.34(1)(110), 1.35(0.35)(112), 1.65(0.17)(200),1.17(0.11)(220),

Crystal Structure:

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drag2 - RMB Resize/Rotate
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H - Help Screen
I - Data Info
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Wyckoff R W G , Crystal Structures , 1 (1963) p.7-83, Second edition. Interscience Publishers, New York, New York, Body centered cubic, bcc, structure

Physical Properties of Tantalum

Color:

Grayish yellow.

Habit:

Granular - Generally occurs as anhedral to subhedral crystals in matrix.

Luminescence:

Non-fluorescent.

Magnetism:

Nonmagnetic

Calculated Properties of Tantalum

Electron Density:

r_electron=13.4 gm/cc
note: r_Tantalum=16.6 gm/cc.

Fermion Index

Fermion Index = 0.00012
Boson Index = 0.99988

Photoelectric:

PE_Tantalum=1,276.15 barns/electron
U=PE_Tantalum x r_electron=17123.55 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Tantalum is Not Radioactive

Tantalum Classification

Dana Class:

1.0.0.0 (1)Native Elements

(1.0)Without Dana Classification Numbers

(Metals)

Strunz Class:

I/X.00-00 I - Elements

I/X - Unclassified Strunz Elements

I/X.00 - Metals

Other Tantalum Information

References:

PHYS. PROP.(Dana)

See Also:

Links to other databases for Tantalum :
1 -Am. Min. Crystal Structure Database 2 - Applied Mineralogy 3 -Athena 4 -Google Images 5 -Google Scholar 6 -MinDAT 7 -MinMax(Deutsch) 8 -MinMax(English) 9 -Mineralienatlas (Deutsch) 10 -QUT Mineral Atlas 11 - WWW-MINCRYST

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Tantalum

Ta
Dana No: Unknown Strunz No: I/X.00-00
Locality:

Notes: